CP
gene geneOn this page
Also known as AB073614
Summary
CP (ceruloplasmin, HGNC:2295) is a protein-coding gene on chromosome 3q24-q25.1, encoding Ceruloplasmin (P00450). Multifunctional blue, copper-binding (6-7 atoms per molecule) glycoprotein.
The protein encoded by this gene is a metalloprotein that binds most of the copper in plasma and is involved in the peroxidation of Fe(II)transferrin to Fe(III) transferrin. Mutations in this gene cause aceruloplasminemia, which results in iron accumulation and tissue damage, and is associated with diabetes and neurologic abnormalities. Two transcript variants, one protein-coding and the other not protein-coding, have been found for this gene.
Source: NCBI Gene 1356 — RefSeq curated summary.
At a glance
- Gene–disease (curated): aceruloplasminemia (Definitive, ClinGen) — +1 more curated relationship
- GWAS associations: 1
- Clinical variants (ClinVar): 1,175 total — 90 pathogenic, 55 likely-pathogenic (top 2% of genes corpus-wide)
- GTEx eGene: eQTL in 27 tissues, sQTL in 7 (q < 0.05)
- Phenotypes (HPO): 48
- Dosage sensitivity (ClinGen): haploinsufficiency autosomal recessive, triplosensitivity unscored
- Constraint (gnomAD): pLI 0.00 (LoF-tolerant), LOEUF 0.62 (unconstrained)
- MANE Select transcript:
NM_000096 - Interaction hub: 1,850 STRING partners (top 9% of genes corpus-wide)
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:2295 |
| Approved symbol | CP |
| Name | ceruloplasmin |
| Location | 3q24-q25.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | AB073614 |
| Ensembl gene | ENSG00000047457 |
| Ensembl biotype | protein_coding |
| OMIM | 117700 |
| Entrez | 1356 |
Gene structure
Transcript identifiers
Ensembl transcripts: 31 — 16 protein_coding, 9 retained_intron, 5 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined
MANE Select: ENST00000264613
Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 5, TSL 2: 6, TSL 3: 2, TSL 5: 2
ENST00000264613, ENST00000455472, ENST00000460674, ENST00000462336, ENST00000463556, ENST00000471356, ENST00000473296, ENST00000474204, ENST00000479771, ENST00000481169, ENST00000489736, ENST00000490639, ENST00000494544, ENST00000497797, ENST00000497902, ENST00000870686, ENST00000870687, ENST00000870688, ENST00000870689, ENST00000870690, ENST00000979708, ENST00000979709, ENST00000979710, ENST00000979711, ENST00000979712, ENST00001008834, ENST00001108957, ENST00001108958, ENST00001108959, ENST00001116686, ENST00001144862
RefSeq mRNA: 1 — MANE Select: NM_000096
NM_000096
CCDS: CCDS3141
Canonical transcript exons
ENST00000264613 — 19 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001008197 | 149221647 | 149221829 |
| ENSE00001245656 | 149176250 | 149176412 |
| ENSE00003463270 | 149177840 | 149177979 |
| ENSE00003463548 | 149179556 | 149179662 |
| ENSE00003467839 | 149202102 | 149202241 |
| ENSE00003470933 | 149198367 | 149198578 |
| ENSE00003486135 | 149172497 | 149173730 |
| ENSE00003508771 | 149212451 | 149212698 |
| ENSE00003530045 | 149182005 | 149182133 |
| ENSE00003567271 | 149210167 | 149210379 |
| ENSE00003573642 | 149209211 | 149209384 |
| ENSE00003585505 | 149199712 | 149199864 |
| ENSE00003594625 | 149186520 | 149186732 |
| ENSE00003635687 | 149188052 | 149188202 |
| ENSE00003639931 | 149206168 | 149206339 |
| ENSE00003646391 | 149207363 | 149207617 |
| ENSE00003657393 | 149178415 | 149178631 |
| ENSE00003667758 | 149185239 | 149185446 |
| ENSE00003692951 | 149183466 | 149183605 |
Expression profiles
Bgee: expression breadth ubiquitous, 234 present calls, max score 99.68.
FANTOM5 (CAGE): breadth broad, TPM avg 8.0396 / max 2023.4974, expressed in 333 samples.
Highest expression (Bgee): lobe of liver, liver, palpebral conjunctiva, nasal cavity epithelium, olfactory segment of nasal mucosa.
Genetic regulation across tissues (GTEx eQTL / sQTL)
CP is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 27 tissues and its splicing (sQTL) in 7 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.
showing 20 of 34 significant tissue × QTL associations:
| Tissue | QTL | q-value | Slope | Lead variant |
|---|---|---|---|---|
| Testis | eqtl | 7.6e-34 | -0.94 | 3:149220559:T:C |
| Artery Tibial | sqtl | 2.4e-11 | -1.02 | 3:149184279:C:G |
| Cells Cultured fibroblasts | eqtl | 8.5e-11 | +0.25 | 3:149222074:T:C |
| Brain Nucleus accumbens basal ganglia | eqtl | 3.9e-09 | -0.45 | 3:149223729:T:C |
| Nerve Tibial | eqtl | 7.5e-09 | -0.55 | 3:149244048:T:C |
| Artery Tibial | eqtl | 1.0e-08 | -0.51 | 3:149211725:A:G |
| Liver | sqtl | 4.2e-07 | -0.87 | 3:149183074:A:C |
| Esophagus Muscularis | eqtl | 1.2e-06 | -0.30 | 3:149222074:T:C |
| Artery Aorta | sqtl | 3.0e-05 | -0.93 | 3:149184279:C:G |
| Esophagus Mucosa | eqtl | 5.3e-05 | -0.38 | 3:149211725:A:G |
| Colon Sigmoid | eqtl | 2.2e-04 | -0.27 | 3:149222074:T:C |
| Thyroid | eqtl | 3.6e-04 | -0.34 | 3:149227648:T:C |
| Brain Putamen basal ganglia | eqtl | 3.9e-04 | -0.38 | 3:149223729:T:C |
| Heart Atrial Appendage | eqtl | 5.7e-04 | -0.31 | 3:149207631:G:A |
| Nerve Tibial | sqtl | 5.9e-04 | -0.83 | 3:149182489:A:G |
| Brain Anterior cingulate cortex BA24 | eqtl | 7.2e-04 | -0.39 | 3:149245115:G:A |
| Brain Cortex | eqtl | 1.1e-03 | -0.35 | 3:149223729:T:C |
| Brain Spinal cord cervical c-1 | eqtl | 1.3e-03 | -0.46 | 3:149245115:G:A |
| Thyroid | sqtl | 1.3e-03 | -0.73 | 3:149184279:C:G |
| Colon Transverse | eqtl | 1.5e-03 | -0.35 | 3:149222355:A:G |
FANTOM5 promoters
6 alternative TSS:
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 45003 | 7.0473 | 285 |
| 45005 | 0.5511 | 97 |
| 45004 | 0.3220 | 103 |
| 44999 | 0.0778 | 23 |
| 45006 | 0.0331 | 14 |
| 45001 | 0.0083 | 6 |
Top tissues by expression
showing 100 of 284 tissues by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| right lobe of liver | UBERON:0001114 | 99.68 | gold quality |
| liver | UBERON:0002107 | 99.34 | gold quality |
| palpebral conjunctiva | UBERON:0001812 | 99.12 | gold quality |
| nasal cavity epithelium | UBERON:0005384 | 98.72 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 98.59 | gold quality |
| bronchial epithelial cell | CL:0002328 | 98.12 | gold quality |
| mucosa of paranasal sinus | UBERON:0005030 | 97.68 | gold quality |
| nasal cavity mucosa | UBERON:0001826 | 97.59 | gold quality |
| epithelium of bronchus | UBERON:0002031 | 97.35 | gold quality |
| bronchus | UBERON:0002185 | 97.15 | gold quality |
| choroid plexus epithelium | UBERON:0003911 | 96.24 | gold quality |
| ascending aorta | UBERON:0001496 | 95.06 | gold quality |
| right coronary artery | UBERON:0001625 | 95.00 | gold quality |
| thoracic aorta | UBERON:0001515 | 94.79 | gold quality |
| aorta | UBERON:0000947 | 94.21 | gold quality |
| tibial artery | UBERON:0007610 | 94.03 | gold quality |
| popliteal artery | UBERON:0002250 | 94.01 | gold quality |
| minor salivary gland | UBERON:0001830 | 93.86 | gold quality |
| calcaneal tendon | UBERON:0003701 | 93.14 | gold quality |
| colonic epithelium | UBERON:0000397 | 93.07 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 92.54 | gold quality |
| rectum | UBERON:0001052 | 91.12 | gold quality |
| right atrium auricular region | UBERON:0006631 | 91.00 | gold quality |
| spleen | UBERON:0002106 | 90.26 | gold quality |
| tendon | UBERON:0000043 | 90.13 | gold quality |
| epithelium of nasopharynx | UBERON:0001951 | 89.98 | gold quality |
| mouth mucosa | UBERON:0003729 | 89.58 | gold quality |
| lymph node | UBERON:0000029 | 89.16 | gold quality |
| trachea | UBERON:0003126 | 89.16 | gold quality |
| left coronary artery | UBERON:0001626 | 88.92 | gold quality |
| cardiac atrium | UBERON:0002081 | 88.80 | gold quality |
| coronary artery | UBERON:0001621 | 88.38 | gold quality |
| layer of synovial tissue | UBERON:0007616 | 88.25 | gold quality |
| mucosa of stomach | UBERON:0001199 | 88.06 | gold quality |
| C1 segment of cervical spinal cord | UBERON:0006469 | 88.06 | gold quality |
| small intestine Peyer’s patch | UBERON:0003454 | 87.95 | gold quality |
| saliva-secreting gland | UBERON:0001044 | 87.82 | gold quality |
| skin of leg | UBERON:0001511 | 87.08 | gold quality |
| left lobe of thyroid gland | UBERON:0001120 | 86.97 | gold quality |
| tibial nerve | UBERON:0001323 | 86.96 | gold quality |
| endometrium | UBERON:0001295 | 86.94 | gold quality |
| buccal mucosa cell | CL:0002336 | 86.83 | gold quality |
| right lobe of thyroid gland | UBERON:0001119 | 86.64 | gold quality |
| adenohypophysis | UBERON:0002196 | 86.58 | gold quality |
| synovial joint | UBERON:0002217 | 86.52 | gold quality |
| spinal cord | UBERON:0002240 | 86.04 | gold quality |
| medial globus pallidus | UBERON:0002477 | 85.99 | gold quality |
| tendon of biceps brachii | UBERON:0008188 | 85.95 | gold quality |
| small intestine | UBERON:0002108 | 85.48 | gold quality |
| thyroid gland | UBERON:0002046 | 85.09 | gold quality |
| subcutaneous adipose tissue | UBERON:0002190 | 83.72 | gold quality |
| trabecular bone tissue | UBERON:0002483 | 83.64 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 83.24 | gold quality |
| zone of skin | UBERON:0000014 | 82.97 | gold quality |
| urethra | UBERON:0000057 | 82.82 | gold quality |
| transverse colon | UBERON:0001157 | 82.43 | gold quality |
| decidua | UBERON:0002450 | 82.22 | gold quality |
| globus pallidus | UBERON:0001875 | 81.72 | gold quality |
| skin of abdomen | UBERON:0001416 | 81.49 | gold quality |
| intestine | UBERON:0000160 | 81.12 | gold quality |
| peritoneum | UBERON:0002358 | 81.01 | gold quality |
| omental fat pad | UBERON:0010414 | 81.00 | gold quality |
| islet of Langerhans | UBERON:0000006 | 80.76 | gold quality |
| pericardium | UBERON:0002407 | 80.50 | gold quality |
| tonsil | UBERON:0002372 | 80.45 | gold quality |
| hypothalamus | UBERON:0001898 | 80.42 | gold quality |
| pituitary gland | UBERON:0000007 | 80.32 | gold quality |
| muscle layer of sigmoid colon | UBERON:0035805 | 80.08 | gold quality |
| caudate nucleus | UBERON:0001873 | 80.01 | gold quality |
| substantia nigra | UBERON:0002038 | 79.95 | gold quality |
| corpus callosum | UBERON:0002336 | 79.95 | gold quality |
| large intestine | UBERON:0000059 | 79.87 | gold quality |
| colon | UBERON:0001155 | 79.86 | gold quality |
| superficial temporal artery | UBERON:0001614 | 79.83 | silver quality |
| sigmoid colon | UBERON:0001159 | 79.58 | gold quality |
| right lung | UBERON:0002167 | 79.48 | gold quality |
| adipose tissue of abdominal region | UBERON:0007808 | 79.48 | gold quality |
| endocervix | UBERON:0000458 | 79.11 | gold quality |
| esophagogastric junction muscularis propria | UBERON:0035841 | 79.08 | gold quality |
| duodenum | UBERON:0002114 | 78.71 | gold quality |
| mammary duct | UBERON:0001765 | 78.10 | gold quality |
| amygdala | UBERON:0001876 | 78.00 | gold quality |
| adipose tissue | UBERON:0001013 | 77.92 | gold quality |
| midbrain | UBERON:0001891 | 77.88 | gold quality |
| connective tissue | UBERON:0002384 | 77.88 | gold quality |
| heart | UBERON:0000948 | 77.70 | gold quality |
| Ammon’s horn | UBERON:0001954 | 77.61 | gold quality |
| prostate gland | UBERON:0002367 | 77.61 | gold quality |
| mucosa of sigmoid colon | UBERON:0004993 | 77.42 | gold quality |
| lower esophagus muscularis layer | UBERON:0035833 | 77.15 | gold quality |
| lower esophagus | UBERON:0013473 | 77.10 | gold quality |
| caput epididymis | UBERON:0004358 | 77.05 | gold quality |
| putamen | UBERON:0001874 | 76.83 | gold quality |
| mucosa of transverse colon | UBERON:0004991 | 76.79 | gold quality |
| skin of hip | UBERON:0001554 | 76.70 | gold quality |
| metanephros cortex | UBERON:0010533 | 76.57 | gold quality |
| esophagus | UBERON:0001043 | 76.55 | gold quality |
| superior surface of tongue | UBERON:0007371 | 76.49 | gold quality |
| epithelium of mammary gland | UBERON:0003244 | 76.41 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 76.41 | gold quality |
Single-cell (SCXA)
Detected in 19 experiment(s), a significant marker in 18.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-GEOD-135922 | yes | 4924.01 |
| E-GEOD-98556 | yes | 4573.19 |
| E-GEOD-130148 | yes | 3779.17 |
| E-HCAD-23 | yes | 3713.30 |
| E-MTAB-7316 | yes | 2137.74 |
| E-MTAB-11121 | yes | 2108.84 |
| E-GEOD-137537 | yes | 1761.27 |
| E-HCAD-24 | yes | 1382.54 |
| E-MTAB-10553 | yes | 738.12 |
| E-MTAB-8142 | yes | 97.69 |
| E-HCAD-9 | yes | 54.74 |
| E-CURD-114 | yes | 50.14 |
| E-MTAB-10287 | yes | 43.48 |
| E-HCAD-4 | yes | 23.63 |
| E-MTAB-7249 | yes | 11.30 |
HPA expression
RNA tissue specificity: Tissue enriched
showing 60 of 74 HPA tissues / cells by nTPM:
| Tissue / cell | Axis | nTPM | Protein (IHC) |
|---|---|---|---|
| Liver | tissue | 1750.2 | not detected |
| Retina | tissue | 228.4 | |
| Choroid plexus | tissue | 227.9 | |
| Corpus callosum | tissue | 91.1 | |
| Cervix | tissue | 66.0 | not detected |
| Medulla oblongata | tissue | 53.9 | |
| Spinal cord | tissue | 53.6 | |
| Midbrain | tissue | 47.4 | |
| Substantia nigra | tissue | 43.5 | |
| Periaqueductal gray | tissue | 42.2 | |
| Thalamus | tissue | 35.3 | |
| Superior colliculi | tissue | 33.2 | |
| Pons | tissue | 31.0 | |
| Pituitary gland | tissue | 30.5 | |
| Putamen | tissue | 26.8 | |
| Urinary bladder | tissue | 22.3 | not detected |
| Ventral forebrain | tissue | 21.2 | |
| Spleen | tissue | 20.9 | not detected |
| Septum | tissue | 20.7 | |
| Breast | tissue | 19.5 | not detected |
| Tonsil | tissue | 18.8 | not detected |
| Hippocampal formation | tissue | 18.4 | |
| Hypothalamus | tissue | 18.3 | |
| Lymph node | tissue | 17.8 | not detected |
| Rectum | tissue | 15.4 | not detected |
| Endometrium 1 | tissue | 13.9 | not detected |
| Lung | tissue | 12.7 | not detected |
| Colon | tissue | 12.2 | not detected |
| Olfactory bulb | tissue | 12.1 | |
| Amygdala | tissue | 11.9 | |
| Basal ganglia | tissue | 10.5 | not detected |
| Cerebral cortex | tissue | 10.3 | not detected |
| Retrosplenial cortex | tissue | 10.3 | |
| Duodenum | tissue | 9.2 | not detected |
| Caudate putamen | tissue | 8.8 | |
| Occipital cortex | tissue | 8.7 | |
| Somatosensory cortex | tissue | 8.4 | |
| Insular cortex | tissue | 8.3 | |
| Frontal cortex | tissue | 8.0 | |
| Retrosplenial and cingulate cortex | tissue | 7.8 | |
| Fallopian tube | tissue | 7.8 | not detected |
| Tongue | tissue | 7.7 | |
| Motor cortex | tissue | 7.6 | |
| Prefrontal cortex | tissue | 7.4 | |
| Prostate | tissue | 7.4 | not detected |
| Temporal cortex | tissue | 7.1 | |
| Cerebellum | tissue | 7.0 | not detected |
| Entorhinal cortex | tissue | 6.9 | |
| Hippocampus | tissue | 6.5 | not detected |
| Small intestine | tissue | 5.6 | not detected |
| Adipose tissue | tissue | 5.5 | not detected |
| Locus coeruleus | tissue | 5.5 | |
| Nucleus accumbens | tissue | 5.1 | |
| Skin 1 | tissue | 5.0 | not detected |
| Heart muscle | tissue | 3.8 | not detected |
| Parathyroid gland | tissue | 3.7 | not detected |
| Placenta | tissue | 3.2 | not detected |
| Kidney | tissue | 3.1 | not detected |
| Esophagus | tissue | 3.0 | not detected |
| Vagina | tissue | 2.7 | not detected |
Brain sub-regions (HPA Brain Atlas): detected in 189; highest nTPM — White matter (91.1), Blood vessel (62.0), Ventral spinal cord (53.6), Dorsal spinal cord (46.6), Supraoptic nucleus (44.7).
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): AP1, CEBPZ, EGR1, FOXC2, FOXO1, GLI1, GLI3, HIF1A, JUN, MBD2, RNF2, SP1, SSRP1
miRNA regulators (miRDB)
Targeting CP by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific).
showing 30 of 77 miRNAs:
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-6833-3P | 100.00 | 70.63 | 3197 |
| HSA-MIR-4747-5P | 100.00 | 67.90 | 2681 |
| HSA-MIR-5196-5P | 100.00 | 67.98 | 2761 |
| HSA-MIR-548AW | 99.99 | 72.57 | 3559 |
| HSA-MIR-186-5P | 99.99 | 70.83 | 3707 |
| HSA-MIR-513B-5P | 99.99 | 69.96 | 2150 |
| HSA-MIR-520D-5P | 99.98 | 73.34 | 4883 |
| HSA-MIR-524-5P | 99.98 | 73.43 | 4882 |
| HSA-MIR-7152-3P | 99.97 | 67.47 | 849 |
| HSA-MIR-570-3P | 99.96 | 72.41 | 4910 |
| HSA-LET-7C-3P | 99.95 | 73.42 | 2862 |
| HSA-MIR-651-3P | 99.94 | 73.48 | 5177 |
| HSA-MIR-4778-3P | 99.93 | 70.40 | 1818 |
| HSA-MIR-450B-5P | 99.92 | 71.48 | 3175 |
| HSA-MIR-6809-3P | 99.91 | 71.45 | 3814 |
| HSA-MIR-4753-3P | 99.90 | 71.03 | 3786 |
| HSA-MIR-153-5P | 99.89 | 73.86 | 6317 |
| HSA-MIR-4496 | 99.88 | 68.89 | 2236 |
| HSA-MIR-4307 | 99.82 | 70.45 | 3374 |
| HSA-MIR-3180-5P | 99.82 | 69.12 | 2422 |
| HSA-MIR-3133 | 99.81 | 70.92 | 3506 |
| HSA-MIR-4659A-3P | 99.80 | 72.62 | 4248 |
| HSA-MIR-4659B-3P | 99.80 | 72.62 | 4248 |
| HSA-MIR-92A-2-5P | 99.75 | 67.01 | 2164 |
| HSA-MIR-7856-5P | 99.75 | 69.99 | 2901 |
| HSA-MIR-556-3P | 99.74 | 68.75 | 1203 |
| HSA-MIR-4255 | 99.72 | 67.70 | 1541 |
| HSA-MIR-33A-3P | 99.70 | 70.27 | 3362 |
| HSA-MIR-1208 | 99.70 | 68.28 | 1533 |
| HSA-MIR-4729 | 99.69 | 72.18 | 4233 |
Functional genomics
gnomAD constraint: pLI 5e-07, LOEUF 0.624, missense Z 1.61 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD
Regional missense constraint (gnomAD)
ENST00000264613 splits into 2 regions with different missense tolerance; 0 are missense-constrained. Missense variants in a constrained region (low observed/expected) are more likely to be pathogenic. gnomAD
| Region (GRCh38) | Missense obs / exp | o/e | Constrained |
|---|---|---|---|
| 3:149,173,717–149,198,510 | 525 / 657.2 | 0.80 | no |
| 3:149,198,511–149,221,792 | 642 / 627.3 | 1.02 | no |
ClinGen dosage: haploinsufficiency 30 (autosomal recessive), triplosensitivity Not yet evaluated (unscored). ClinGen Gene Dosage Map |
Literature-anchored findings (GeneRIF, showing 40)
- CERULOPLASMIN haS a role in iron uptake rather than release in BT325 cells. (PMID:11681312)
- difference in the molecular structure between human and bovine ceruloplasmin using SDS-PAGE and MALDI-TOF mass spectrometry (PMID:11689010)
- gene coding and flanking regions were sequenced and examined for mutations that might modulate the iron burden of individuals harboring the common mutant hemochromatosis HFE genotype or cause hemochromatosis independent of mutations in the HFE gene (PMID:11783942)
- Studies of the ceruloplasmin-lactoferrin complex (PMID:11908641)
- results show that insulin functions as a bidirectional, condition-dependent regulator of hepatic cell Cp expression; the unique regulation of Cp may reflect its dual roles in inflammation and iron homeostasis (PMID:12029093)
- Carnosine, homocarnosine and anserine significantly inhibited the aggregation of CP induced by peroxyl radicals. (PMID:12132593)
- Serum levels of soluble intercellular adhesion molecule-1 (sICAM-1), ceruloplasmin (Cp), and transferrin (Tf) in rheumatoid arthritis. Serum Tf levels were significantly diminished and serum levels of sICAM-1 and Cp were significantly increased. (PMID:12175089)
- the three-copper cluster at the N-terminal-C-terminal interface plays a crucial role in the structural stability of human ceruloplasmin (PMID:12177070)
- elucidation of mechanisms of copper incorporation (PMID:12351628)
- Determination of specific antioxidants like ceruloplasmin in serum may be of value in the early diagnosis of prostate and colon cancer. (PMID:12708132)
- data show that ceruloplasmin stimulates iron release from macrophages under hypoxic conditions by a ferroxidase-dependent mechanism (PMID:12952974)
- Haptoglobin polymorphism was correlated with ceruloplasmin ferroxidase activity in a sample population of unrelated black Jordanians and activity is both haptoglobin type and concentration dependent. (PMID:15103512)
- Urinary levels are increaed in normoalbuminuric type 2 diabetic patients. (PMID:15111541)
- 5 new missense (I63T, P477L, T551I, R793H, T841R) & 3 new silent variations (g:9230/C->A, g:42221/C->T, g:4400/T->C) were found. Cp colocalized with Fe in Lewy bodies, suggesting a role in pathogenesis of Parkinson disease. (PMID:15557511)
- REVIEW: mechanism for the involvement of ceruloplasmin in cardiovascular disease (PMID:15668644)
- hypoxia-inducible factor (HIF)-1 has a role in ceruloplasmin regulation (PMID:15741220)
- Cp polypeptides with molecular weight of nearly 30 kDa were found in mitochondria of HuTu 80 cells (PMID:15752613)
- altered activity of ceruloplasmin may present a vulnerability factor for iron induced oxidative stress in Parkinson’s disease (PMID:16150804)
- Increased levels in urine predicts development of microalbuminuria in type 2 diabetes. (PMID:16373913)
- results showed that exposure of CP to methylglyoxal led to protein aggregation and that aggregation of CP induced the inactivation of feroxidase and the release of copper ions (PMID:16756764)
- Results describe the biochemical features of wild-type and mutant GPI-anchored ceruloplasmin. (PMID:16775387)
- A biochemical analysis of the patients’ serum and a biogenesis study of G969S mutant ceruloplasmin using mammalian cell culture system resulted in the synthesis and secretion of only apoceruloplasmin without any ferroxidase activity. (PMID:16831606)
- In a Chinese woman who had diabetes mellitus, undetectable ceruloplasmin, hand tremor, neck dystonia, and cognitive disturbances, genetic analyses revealed a novel homozygous mutation (848G > C or W283S) in exon 5 in the ceruloplasmin gene. (PMID:17013908)
- ceruloplasmin gene is regulated by activator protein-1 site in the gene by redox active copper. (PMID:17032174)
- CP levels wefre determined in children with Henoch-Schonlein purpura. (PMID:17404760)
- describe a study of the conformation of the human lactoferrin/ceruloplasmin complex in solution using small angle X-ray scattering (PMID:17597152)
- The truncated mutant containing Cys-881 was able to pass through the ER and was secreted, while the truncated mutant protein without Cys-881 appeared to accumulate in the ER thus leading to ER stress and eventually resulting in cell death. (PMID:17637479)
- In vitro equilibrium unfolding of CP involves intermediates and the copper ions are removed in stages. (PMID:17661447)
- With regard to septic liver dysfunction, signs of cholestasis were mostly reflected in greater increases in Cp (PMID:17688883)
- In contrast, apo-CP unfolds rapidly: the denatured state is reached in <2 days at 37 degrees C. (PMID:17965133)
- The involvement of lymphocyte-derived CP on host defense processes via its anti/prooxidant properties is proposed, giving further support for a close functional interaction between the immune system and the Fe metabolism. (PMID:17991445)
- stable complex between these Cp and Hp and Tf does not occur under the experimental conditions used (PMID:18022819)
- In the cerebrospinal fluid of Alzheimer’s disease patients the decrease of active CP, associated with the increase in the pool of copper not sequestered by this protein, may play a role in the neurodegenerative process (PMID:18060472)
- Measurement of Cp separated by the present method could be useful for the diagnosis of ITP in the presence of thrombocytopenia and a non- or low-inflammatory state (PMID:18187043)
- We report two siblings with markedly different phenotypes carrying a novel mutation: a homozygous deletion of two nucleotides (1257-1258 TT del) causing the premature stop of the Cp protein translation (Y401X). (PMID:18200628)
- Multiple motor system dysfunction associated with a heterozygous ceruloplasmin gene mutation. (PMID:18293024)
- Results describe the activity of ferroxidase, SOD1, and cofactors in CSF of patients with Parkinson’s disease, Alzheimer’s disease, Huntington’s disease, or amyotrophic lateral sclerosis. (PMID:18307039)
- Investigated of brain iron levels in two asymptomatic young adult carriers with heterozygous mutations of Cp gene by using T2*-weighted MR images. (PMID:18311828)
- Ceruloplasmin is a better predictor of the long-term prognosis compared with fibrinogen, CRP, and IL-6 in patients with severe unstable angina. (PMID:18388036)
- there is an increase in ceruloplasmin levels in placental tissue in preeclampsia compared to preterm and normal controls (PMID:18679377)
Cross-species orthologs
3 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | cp | ENSDARG00000010312 |
| mus_musculus | Cp | ENSMUSG00000003617 |
| rattus_norvegicus | Cp | ENSRNOG00000011913 |
Paralogs (35): NRXN3 (ENSG00000021645), TLL1 (ENSG00000038295), DCBLD2 (ENSG00000057019), HEPH (ENSG00000089472), TLL2 (ENSG00000095587), NRP1 (ENSG00000099250), PCOLCE (ENSG00000106333), CNTNAP3 (ENSG00000106714), CUBN (ENSG00000107611), CNTNAP1 (ENSG00000108797), NRXN2 (ENSG00000110076), MEP1A (ENSG00000112818), NRP2 (ENSG00000118257), CUZD1 (ENSG00000138161), MFGE8 (ENSG00000140545), MEP1B (ENSG00000141434), PDGFC (ENSG00000145431), CNTNAP4 (ENSG00000152910), CNTNAP3B (ENSG00000154529), CNTNAP5 (ENSG00000155052), CDCP2 (ENSG00000157211), PCOLCE2 (ENSG00000163710), EDIL3 (ENSG00000164176), NETO1 (ENSG00000166342), BMP1 (ENSG00000168487), PDGFD (ENSG00000170962), NETO2 (ENSG00000171208), CNTNAP2 (ENSG00000174469), NRXN1 (ENSG00000179915), HEPHL1 (ENSG00000181333), F8 (ENSG00000185010), ASTL (ENSG00000188886), F5 (ENSG00000198734), MFRP (ENSG00000235718), CNTNAP3C (ENSG00000283378)
Mouse-model phenotypes
Observed phenotypes of the mouse ortholog (MGI:88476) from MGI (Alliance of Genome Resources) — knockout/mutant phenotypes, ranked by annotation count. 40 distinct phenotype terms.
| Mouse phenotype (MP) | Records |
|---|---|
| increased liver iron level | 5 |
| decreased circulating iron level | 4 |
| abnormal lipid homeostasis | 2 |
| abnormal brain iron level | 2 |
| abnormal hepatocyte morphology | 1 |
| abnormal fourth ventricle morphology | 1 |
| abnormal Purkinje cell morphology | 1 |
| abnormal cerebellar granule layer morphology | 1 |
| demyelination | 1 |
| decreased motor neuron number | 1 |
| abnormal locomotor behavior | 1 |
| impaired coordination | 1 |
| abnormal gait | 1 |
| abnormal iron level | 1 |
| abnormal sensory capabilities/reflexes/nociception | 1 |
| abnormal astrocyte morphology | 1 |
| decreased mean corpuscular volume | 1 |
| microcytic anemia | 1 |
| increased heart weight | 1 |
| decreased hemoglobin content | 1 |
| abnormal neuron morphology | 1 |
| hypoalgesia | 1 |
| abnormal liver copper level | 1 |
| neuron degeneration | 1 |
| abnormal locomotor activation | 1 |
+15 more (showing top 25).
Additional cross-species homologs
Sequence homologs in species beyond Ensembl Compara’s model organisms, by Diamond local protein alignment (% sequence identity; best hit per species). Lower-identity rows are more distant homologs. The matched accessions’ gene symbols aren’t in biobtree yet, so each row shows the UniProt accession.
| Organism | UniProt | Identity | Method |
|---|---|---|---|
| Oxyuranus microlepidotus | Q58L90 | 97.7% | Diamond |
| Oxyuranus scutellatus | Q58L91 | 97.7% | Diamond |
| Pseudonaja textilis | Q7SZN0 | 96.9% | Diamond |
| Ovis aries | Q9XT27 | 84.9% | Diamond |
| Bos taurus | Q28107 | 79.6% | Diamond |
| Sus scrofa | Q9GLP1 | 79.6% | Diamond |
| Canis lupus familiaris | O18806 | 77.1% | Diamond |
| Acropora millepora | B3EWZ9 | 50.4% | Diamond |
| Mycobacterium tuberculosis H37Rv | I6WZK7 | 47.7% | Diamond |
| Pestalotiopsis fici W106-1 | W3X7K0 | 43.8% | Diamond |
Genomic neighbors (locus context)
Genes flanking this one on the chromosome (NCBI/Entrez gene neighborhood). Positional context only — some neighbors share regulatory elements (bidirectional promoters, antisense/overlapping transcripts), but chromosomal adjacency is not itself a functional relationship (see Interactions for that).
| Symbol | Type | Entrez |
|---|---|---|
| GYG1 | protein-coding | 2992 |
| HLTF | protein-coding | 6596 |
| HPS3 | protein-coding | 84343 |
| HLTF-AS1 | ncRNA | 100873945 |
| TM4SF18 | protein-coding | 116441 |
| TM4SF18-AS1 | ncRNA | 128193290 |
Protein
Protein identifiers
Ceruloplasmin — P00450 (reviewed: P00450)
Alternative names: Cuproxidase ceruloplasmin, Ferroxidase ceruloplasmin, Glutathione peroxidase ceruloplasmin, Glutathione-dependent peroxiredoxin ceruloplasmin
All UniProt accessions (5): D6RE86, E9PFZ2, H7C5N5, H7C5R1, P00450
UniProt curated annotations — full annotation on UniProt →
Function. Multifunctional blue, copper-binding (6-7 atoms per molecule) glycoprotein. It has ferroxidase activity oxidizing Fe(2+) to Fe(3+) without releasing radical oxygen species. It is involved in iron transport across the cell membrane. Copper ions provide a large number of enzymatic activites. Oxidizes highly toxic ferrous ions to the ferric state for further incorporation onto apo-transferrins, catalyzes Cu(+) oxidation and promotes the oxidation of biogenic amines such as norepinephrin and serotonin. Provides Cu(2+) ions for the ascorbate-mediated deaminase degradation of the heparan sulfate chains of GPC1. Has glutathione peroxidase-like activity, can remove both hydrogen peroxide and lipid hydroperoxide in the presence of thiols. Acts as an inhibitor of the peroxidase activity of MPO. Also shows NO-oxidase and NO2 synthase activities that determine endocrine NO homeostasis.
Subunit / interactions. Found in a complex with MPO and LTF; interacts directly with MPO and LTF, which allows Fe(3+) incorporation into LTF, activation of CP ferroxidase activity and protection of CP antioxidant properties by MPO.
Subcellular location. Secreted.
Tissue specificity. Expressed by the liver and secreted in plasma.
Disease relevance. Aceruloplasminemia (ACEP) [MIM:604290] An autosomal recessive disorder of iron metabolism characterized by iron accumulation in the brain as well as visceral organs. Clinical features consist of the triad of retinal degeneration, diabetes mellitus and neurological disturbances. The disease is caused by variants affecting the gene represented in this entry.
Cofactor. Binds 6 Cu(2+) cations per monomer.
Similarity. Belongs to the multicopper oxidase family.
RefSeq proteins (1): NP_000087* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR001117 | Cu-oxidase_2nd | Domain |
| IPR002355 | Cu_oxidase_Cu_BS | Binding_site |
| IPR008972 | Cupredoxin | Homologous_superfamily |
| IPR011706 | Cu-oxidase_C | Domain |
| IPR011707 | Cu-oxidase-like_N | Domain |
| IPR033138 | Cu_oxidase_CS | Conserved_site |
| IPR045087 | Cu-oxidase_fam | Family |
| IPR048236 | Ceruloplasmin-like_CuRO_5 | Domain |
Pfam: PF00394, PF07731, PF07732
Enzyme classification (BRENDA)
- EC 1.16.3.1 — ferroxidase (BRENDA: 52 organisms, 108 substrates, 62 inhibitors, 161 Km, 41 kcat entries)
- EC 1.16.3.4 — cuproxidase (BRENDA: 8 organisms, 18 substrates, 2 inhibitors, 20 Km, 14 kcat entries)
Substrate kinetics (BRENDA)
60 substrates with measured Km, best-characterized 15. Km ranges are aggregated across organisms/conditions.
| Substrate | Km (mM) | Measurements |
|---|---|---|
| FE2+ | 0.0006–14.1 | 29 |
| HYDROQUINONE | 0.018–30.5 | 22 |
| P-PHENYLENEDIAMINE | 0.005–1.19 | 18 |
| FE(II) | 0.0006–3.994 | 14 |
| O2 | 0.0011–0.0632 | 10 |
| CU+ | — | 8 |
| O-DIANISIDINE | 0.12–0.76 | 5 |
| CU2+ | 0.163–82 | 5 |
| NADH | 0.14–0.23 | 4 |
| FE2+ | 0.0526–0.129 | 4 |
| N,N’-DIMETHYL-P-PHENYLENEDIAMINE | 0.06–0.164 | 3 |
| [CU(I)(MECN4)]PF6+ | 0.0344–0.427 | 3 |
| L-EPINEPHRINE | 0.0026–5.8 | 2 |
| O-PHENYLENEDIAMINE | 0.0029–4.15 | 2 |
| 2-CHLORO-P-PHENYLENEDIAMINE | 0.241 | 1 |
Catalyzed reactions (Rhea)
- 4 Fe(2+) + O2 + 4 H(+) = 4 Fe(3+) + 2 H2O (RHEA:11148)
- 2 glutathione + H2O2 = glutathione disulfide + 2 H2O (RHEA:16833)
- 4 Cu(+) + O2 + 4 H(+) = 4 Cu(2+) + 2 H2O (RHEA:30083)
- a hydroperoxide + 2 glutathione = an alcohol + glutathione disulfide + H2O (RHEA:62632)
- 4 nitric oxide + O2 + 2 H2O = 4 nitrite + 4 H(+) (RHEA:78539)
UniProt features (176 total): strand 68, binding site 40, helix 33, sequence variant 7, turn 6, domain 6, glycosylation site 6, disulfide bond 5, signal peptide 1, chain 1, modified residue 1, sequence conflict 1, active site 1
Structure
Experimental structures (PDB)
4 structures by resolution:
| PDB | Title | Method | Resolution (Å) |
|---|---|---|---|
| 4ENZ | Structure of human ceruloplasmin at 2.6 A resolution | X-RAY DIFFRACTION | 2.6 |
| 2J5W | Ceruloplasmin revisited: structural and functional roles of various metal cation binding … | X-RAY DIFFRACTION | 2.8 |
| 1KCW | X-RAY CRYSTAL STRUCTURE OF HUMAN CERULOPLASMIN AT 3.0 ANGSTROMS | X-RAY DIFFRACTION | 3 |
| 4EJX | Structure of ceruloplasmin-myeloperoxidase complex | X-RAY DIFFRACTION | 4.69 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-P00450-F1 | 93.79 | 0.90 |
Human Protein Atlas
Protein class: Enzymes, ENZYME proteins, Oxidoreductases, Metabolic proteins, Transporters, Accessory Factors Involved in Transport, Predicted secreted proteins, Predicted intracellular proteins, Plasma proteins, Cancer-related genes, Candidate cancer biomarkers, Candidate cardiovascular disease genes, Disease related genes, Potential drug targets, Human disease related genes
Protein evidence: Evidence at protein level
Antibody reliability (HPA): IH supported
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Catalytic / active sites (1)
| Position | Role |
|---|---|
| 699 | nucleophile; for glutathione peroxidase activity |
Ligand- & substrate-binding residues (40)
| Position | Role |
|---|---|
| 64 | Na(+) |
| 67 | Na(+) |
| 120 | Cu(2+) |
| 120 | O2 |
| 122 | Cu(2+) |
| 128 | Ca(2+) |
| 143 | Ca(2+) |
| 146 | Ca(2+) |
| 147 | Ca(2+) |
| 180 | Cu(2+) |
| 180 | O2 |
| 182 | Cu(2+) |
| 256 | Na(+) |
| 295 | Cu(2+) |
| 338 | Cu(2+) |
| 343 | Cu(2+) |
| 408 | Na(+) |
| 417 | Na(+) |
| 420 | Na(+) |
| 617 | Na(+) |
| 656 | Cu(2+) |
| 699 | Cu(2+) |
| 704 | Cu(2+) |
| 709 | Cu(2+) |
| 767 | Na(+) |
| 776 | Na(+) |
| 779 | Na(+) |
| 955 | Na(+) |
| 994 | Cu(2+) |
| 997 | Cu(2+) |
| 997 | O2 |
| 999 | Cu(2+) |
| 999 | O2 |
| 1039 | Cu(2+) |
| 1040 | Cu(2+) |
| 1041 | Cu(2+) |
| 1041 | O2 |
| 1045 | Cu(2+) |
| 1050 | Cu(2+) |
| 55 | Na(+) |
Post-translational modifications (1)
| Type | Positions |
|---|---|
| Phosphoserine | 722 |
Disulfide bonds (5)
| Type | Positions |
|---|---|
| Disulfide bond | 174–200, 276–357, 534–560, 637–718, 874–900 |
Glycosylation sites (6)
| Type | Positions |
|---|---|
| N-linked (glcnac…) (complex) asparagine | 138, 358, 397, 762 |
| N-linked (glcnac…) asparagine | 588, 926 |
Function
Pathways and Gene Ontology
Reactome pathways
6 curated (TAS) of 14; 5 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).
14 pathways:
| ID | Pathway | Evidence |
|---|---|---|
| R-HSA-5619060 | Defective CP causes aceruloplasminemia (ACERULOP) ⚕ | curated |
| R-HSA-5619049 | Defective SLC40A1 causes hemochromatosis 4 (HFE4) (macrophages) ⚕ | curated |
| R-HSA-917937 | Iron uptake and transport | curated |
| R-HSA-425410 | Metal ion SLC transporters | curated |
| R-HSA-8957275 | Post-translational protein phosphorylation | curated |
| R-HSA-381426 | Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) | curated |
| R-HSA-1643685 | Disease ⚕ | — |
| R-HSA-5619115 | Disorders of transmembrane transporters ⚕ | — |
| R-HSA-5619102 | SLC transporter disorders ⚕ | — |
| R-HSA-392499 | Metabolism of proteins | — |
| R-HSA-597592 | Post-translational protein modification | — |
| R-HSA-425366 | — | |
| R-HSA-425407 | SLC-mediated transmembrane transport | — |
| R-HSA-382551 | Transport of small molecules | — |
MSigDB gene sets: 372 (showing top):
MODULE_93, HNF3ALPHA_Q6, HARRIS_HYPOXIA, GOCC_VACUOLAR_MEMBRANE, MODULE_418, GOZGIT_ESR1_TARGETS_DN, GRAESSMANN_APOPTOSIS_BY_SERUM_DEPRIVATION_UP, GRAESSMANN_RESPONSE_TO_MC_AND_SERUM_DEPRIVATION_UP, GOBP_INTRACELLULAR_IRON_ION_HOMEOSTASIS, MCBRYAN_PUBERTAL_TGFB1_TARGETS_UP, GAUSSMANN_MLL_AF4_FUSION_TARGETS_E_UP, DARWICHE_SKIN_TUMOR_PROMOTER_DN, DARWICHE_PAPILLOMA_RISK_LOW_DN, DARWICHE_PAPILLOMA_RISK_HIGH_DN, DARWICHE_SQUAMOUS_CELL_CARCINOMA_DN
GO Biological Process (4): intracellular copper ion homeostasis (GO:0006878), intracellular iron ion homeostasis (GO:0006879), negative regulation of translation (GO:0017148), cellular oxidant detoxification (GO:0098869)
GO Molecular Function (10): ferroxidase activity (GO:0004322), glutathione peroxidase activity (GO:0004602), copper ion binding (GO:0005507), oxidoreductase activity (GO:0016491), oxidoreductase activity, acting on metal ions, oxygen as acceptor (GO:0016724), peroxidase inhibitor activity (GO:0036479), phospholipid-hydroperoxide glutathione peroxidase activity (GO:0047066), protein-folding chaperone binding (GO:0051087), oxidoreductase activity, acting on metal ions (GO:0016722), metal ion binding (GO:0046872)
GO Cellular Component (6): extracellular region (GO:0005576), lysosomal membrane (GO:0005765), endoplasmic reticulum lumen (GO:0005788), plasma membrane (GO:0005886), extracellular exosome (GO:0070062), blood microparticle (GO:0072562)
Reactome top-level categories
7 top-level categories:
| Category | Pathways |
|---|---|
| Metabolism of proteins | 2 |
| SLC transporter disorders | 2 |
| Transport of small molecules | 2 |
| SLC-mediated transmembrane transport | 1 |
| Post-translational protein modification | 1 |
| Disorders of transmembrane transporters | 1 |
| Disease | 1 |
GO top-level categories
26 GO namespaces:
| Category | Terms |
|---|---|
| peroxidase activity | 3 |
| intracellular monoatomic cation homeostasis | 2 |
| cellular anatomical structure | 2 |
| copper ion homeostasis | 1 |
| inorganic ion homeostasis | 1 |
| translation | 1 |
| regulation of translation | 1 |
| negative regulation of gene expression | 1 |
| negative regulation of protein metabolic process | 1 |
| cellular detoxification | 1 |
| oxidoreductase activity, acting on metal ions, oxygen as acceptor | 1 |
| transition metal ion binding | 1 |
| catalytic activity | 1 |
| oxidoreductase activity, acting on metal ions | 1 |
| enzyme inhibitor activity | 1 |
| protein binding | 1 |
| oxidoreductase activity | 1 |
| cation binding | 1 |
| lysosome | 1 |
| lytic vacuole membrane | 1 |
| endoplasmic reticulum | 1 |
| intracellular organelle lumen | 1 |
| membrane | 1 |
| cell periphery | 1 |
| extracellular vesicle | 1 |
| extracellular region | 1 |
Experimentally-supported GO annotations
GO terms backed by direct experimental evidence (ECO experimental codes) — 10 of 21 annotations. The rest are phylogenetic / computational / electronic (IEA).
10 experimentally-supported GO terms:
| GO term | NS | Evidence |
|---|---|---|
| intracellular copper ion homeostasis | BP | direct assay |
| intracellular iron ion homeostasis | BP | direct assay |
| blood microparticle | CC | high-throughput assay |
| extracellular exosome | CC | high-throughput assay |
| lysosomal membrane | CC | high-throughput assay |
| ferroxidase activity | MF | direct assay |
| glutathione peroxidase activity | MF | direct assay |
| oxidoreductase activity, acting on metal ions, oxygen as acceptor | MF | direct assay |
| phospholipid-hydroperoxide glutathione peroxidase activity | MF | direct assay |
| protein-folding chaperone binding | MF | physical interaction |
Protein interactions and networks
STRING
showing 15 of 1,850 interactions by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| CP | ATP7B | P35670 | 961 |
| CP | ATP7A | Q04656 | 902 |
| CP | MRPL13 | Q9BYD1 | 873 |
| CP | HP | P00737 | 869 |
| CP | ORM2 | P19652 | 845 |
| CP | ORM1 | P02763 | 842 |
| CP | SERPINA1 | P01009 | 795 |
| CP | H3BSS0 | H3BSS0 | 774 |
| CP | ALB | P02768 | 740 |
| CP | RPL13A | P40429 | 739 |
| CP | HFE | Q30201 | 731 |
| CP | A2M | P01023 | 730 |
| CP | ATOX1 | O00244 | 722 |
| CP | ADAM8 | P78325 | 711 |
| CP | HPX | P02790 | 706 |
IntAct
Human interaction partners of CP in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).
4 partners by confidence:
| Partner | Interaction type | MIscore | Records |
|---|---|---|---|
| SLC40A1 | physical association | 0.400 | 1 |
| BTRC | physical association | 0.370 | 1 |
| GDPD1 | association | 0.350 | 2 |
| DDHD2 | association | 0.350 | 1 |
BioGRID (69 interactions; top human partners by supporting records): GDPD1 (Affinity Capture-MS; 3 records), DDX31 (Affinity Capture-MS; 2 records), SNX27 (Affinity Capture-MS; 2 records), ACBD3 (Co-fractionation), AGPAT1 (Affinity Capture-MS), AGR2 (Proximity Label-MS), APOA1 (Affinity Capture-MS), BTRC (Two-hybrid), C6 (Cross-Linking-MS (XL-MS)), CCR1 (Affinity Capture-MS), CIR1 (Affinity Capture-MS), CLU (Affinity Capture-MS), DDHD2 (Affinity Capture-MS), DNMT1 (Affinity Capture-MS), DYNLT1 (Proximity Label-MS)
SIGNOR signaling
showing 2 of 5 signaling interactions:
| A | Effect | B | Mechanism |
|---|---|---|---|
| SHH | down-regulates | CP | binding |
| CP | down-regulates | SMO | binding |
Protein complexes (CORUM) (3)
Experimentally-characterized complexes this protein is a subunit of (★ = the complex contains a known drug target).
3 complexes by size:
| Complex | Subunits | Members |
|---|---|---|
| CP-LTF-MPO complex | 3 | LTF, MPO, CP |
| CP-LTF complex | 2 | CP, LTF |
| CP-MPO complex | 2 | CP, MPO |
Disease & clinical
Genetic variants
Variant evidence for CP: 1,175 ClinVar records (145 pathogenic / likely pathogenic); 1 GWAS association. Per-variant detail is on Sugi Variant.
ClinVar
1,175 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 90 |
| Likely pathogenic | 55 |
| Uncertain significance | 450 |
| Likely benign | 354 |
| Benign | 99 |
Top pathogenic / likely-pathogenic (15)
Showing the 15 best-reviewed of 145 pathogenic / likely-pathogenic ClinVar records, ranked by ClinVar review status (expert panel → multiple submitters → single submitter), then by number of submitting labs.
| Variant ID | HGVS | Classification | Review | Submitters |
|---|---|---|---|---|
| 930923 | NM_032383.5(HPS3):c.2464C>T (p.Arg822Ter) | Pathogenic | criteria provided, multiple submitters, no conflicts | 6 |
| 42124 | NM_000096.4(CP):c.2701C>T (p.Arg901Ter) | Pathogenic | criteria provided, multiple submitters, no conflicts | 3 |
| 488150 | NM_000096.4(CP):c.1208+1G>A | Pathogenic | criteria provided, multiple submitters, no conflicts | 3 |
| 627049 | NM_032383.5(HPS3):c.2814dup (p.Leu939fs) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 871317 | NM_000096.4(CP):c.2527_2528del (p.Ser843fs) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 987426 | NM_032383.5(HPS3):c.2736del (p.Glu913fs) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 2630109 | NM_000096.4(CP):c.1991_1992del (p.Thr664fs) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 3588688 | NM_032383.5(HPS3):c.2805G>A (p.Trp935Ter) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 3629557 | NM_000096.4(CP):c.2122G>A (p.Gly708Ser) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 521552 | NM_000096.4(CP):c.583G>A (p.Gly195Arg) | Likely pathogenic | criteria provided, multiple submitters, no conflicts | 6 |
| 128844 | NM_000096.4(CP):c.656T>A (p.Val219Glu) | Likely pathogenic | criteria provided, multiple submitters, no conflicts | 4 |
| 431112 | NM_000096.4(CP):c.2879-1G>T | Likely pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 2676079 | NM_032383.5(HPS3):c.2808G>A (p.Trp936Ter) | Likely pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 2676090 | NM_032383.5(HPS3):c.2440C>T (p.Gln814Ter) | Likely pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 17559 | NM_000096.4(CP):c.3019-1G>A | Pathogenic | criteria provided, single submitter | 3 |
Per-variant reference — Sugi Variant
Explore CP’s pathogenic and likely-pathogenic variants individually — each with its ClinVar classification and conditions, applied ACMG criteria (ClinGen expert panel, where curated), the calibrated in-silico predictors (AlphaMissense, REVEL, SaProt, conservation), gnomAD frequency, and the predictor-disagreement QC signal — on Sugi Variant.
SpliceAI
Top 10 splice-impact sites by Δscore (adjacent positions with the same effect merged into one range; 37 predictions of 1,611):
| Position(s) | Effect | Δscore | Sites |
|---|---|---|---|
| 3:149177838–149177839 | donor_loss | 1.0000 | 5 |
| 3:149177980–149177981 | acceptor_loss | 1.0000 | 5 |
| 3:149182003–149182004 | donor_loss | 1.0000 | 3 |
| 3:149183607 | acceptor_gain | 1.0000 | |
| 3:149188047 | donor_loss | 1.0000 | |
| 3:149188050–149188051 | donor_loss | 1.0000 | 5 |
| 3:149202100–149202101 | donor_loss | 1.0000 | 5 |
| 3:149206166–149206167 | donor_loss | 1.0000 | 5 |
| 3:149206170 | donor_gain | 1.0000 | |
| 3:149206340–149206341 | acceptor_loss | 1.0000 | 6 |
AlphaMissense
1,850 missense substitutions predicted likely pathogenic (of 7,090 scored), across 489 residues. Top 20 hotspot residues, ranked by the number of likely-pathogenic substitutions (of those reachable by a single-nucleotide change), then by mean score:
| Residue | Likely-pathogenic substitutions | Mean am_pathogenicity | Max am_pathogenicity |
|---|---|---|---|
| M1050 | 9 | 0.893 | 0.966 |
| M709 | 9 | 0.841 | 0.947 |
| N111 | 8 | 0.942 | 0.991 |
| D888 | 8 | 0.936 | 0.981 |
| H999 | 8 | 0.934 | 0.971 |
| H1041 | 8 | 0.927 | 0.966 |
| H1039 | 8 | 0.926 | 0.960 |
| D188 | 8 | 0.925 | 0.993 |
| H1045 | 8 | 0.923 | 0.967 |
| N826 | 8 | 0.919 | 0.984 |
| H997 | 8 | 0.912 | 0.971 |
| H180 | 8 | 0.910 | 0.977 |
| H994 | 8 | 0.909 | 0.979 |
| H120 | 8 | 0.908 | 0.987 |
| H182 | 8 | 0.906 | 0.954 |
| H122 | 8 | 0.901 | 0.967 |
| D1014 | 8 | 0.888 | 0.956 |
| H295 | 8 | 0.886 | 0.975 |
| D992 | 8 | 0.876 | 0.945 |
| H704 | 8 | 0.873 | 0.945 |
HPA cancer prognostics
RNA cancer specificity: Cancer enhanced (Liver Hepatocellular Carcinoma)
Human Protein Atlas survival analysis — favorable = higher expression predicts better survival.
1 prognostic cancer types:
| Cancer | Prognostic | p-value |
|---|---|---|
| Lung Adenocarcinoma (validation) | unfavorable | 0.000617 |
Disease associations
OMIM: gene MIM:117700 | disease phenotypes: MIM:614072, MIM:203300, MIM:604290, MIM:234200
GenCC curated gene-disease
2 curated gene-disease records:
| Disease | Classification | Inheritance | Records |
|---|---|---|---|
| aceruloplasminemia | Definitive | Autosomal recessive | 4 |
| disorder of iron metabolism and transport | Limited | Autosomal dominant |
ClinGen Gene-Disease Validity
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
1 validity classifications:
| Disease | Classification | Inheritance |
|---|---|---|
| aceruloplasminemia | Definitive | AR |
Genomics England panels (PanelApp)
Clinical diagnostic gene panels including this gene (16 panels, 16 green/diagnostic-grade). Confidence: green = diagnostic, amber = moderate.
16 panels:
| Panel | Rating |
|---|---|
| Adult-onset neurological disorders | green |
| Ataxia and cerebellar anomalies - childhood onset | green |
| Dystonia, chorea or related movement disorder, adult onset | green |
| Early onset dystonia | green |
| Hereditary ataxia | green |
| Hereditary ataxia and cerebellar anomalies, childhood onset | green |
| Hereditary ataxia, adult onset | green |
| Hypotonic infant | green |
| Iron metabolism disorders - NOT common HFE mutations | green |
| Leukodystrophy, childhood onset | green |
| Likely inborn error of metabolism | green |
| Neurodegenerative disorders, adult onset | green |
| Paediatric disorders | green |
| Structural basal ganglia disorders | green |
| Undiagnosed metabolic disorders | green |
| Unexplained death in infancy and sudden unexplained death in childhood | green |
Mondo (5): Hermansky-Pudlak syndrome 3 (MONDO:0013555), Hermansky-Pudlak syndrome (MONDO:0019312), aceruloplasminemia (MONDO:0011426), neurodegeneration with brain iron accumulation (MONDO:0018307), disorder of iron metabolism and transport (MONDO:0017763)
Orphanet (4): Hermansky-Pudlak syndrome due to BLOC-2 deficiency (Orphanet:231512), Hermansky-Pudlak syndrome (Orphanet:79430), Aceruloplasminemia (Orphanet:48818), Neurodegeneration with brain iron accumulation (Orphanet:385)
HPO phenotypes
48 phenotypes (HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000273 | Facial grimacing |
| HP:0000473 | Torticollis |
| HP:0000546 | Retinal degeneration |
| HP:0000608 | Macular degeneration |
| HP:0000639 | Nystagmus |
| HP:0000643 | Blepharospasm |
| HP:0000707 | Abnormality of the nervous system |
| HP:0000726 | Dementia |
| HP:0000741 | Apathy |
| HP:0000819 | Diabetes mellitus |
| HP:0001251 | Ataxia |
| HP:0001260 | Dysarthria |
| HP:0001300 | Parkinsonism |
| HP:0001332 | Dystonia |
| HP:0001337 | Tremor |
| HP:0001394 | Cirrhosis |
| HP:0001395 | Hepatic fibrosis |
| HP:0001635 | Congestive heart failure |
| HP:0001903 | Anemia |
| HP:0002063 | Rigidity |
| HP:0002066 | Gait ataxia |
| HP:0002070 | Limb ataxia |
| HP:0002071 | Abnormality of extrapyramidal motor function |
| HP:0002072 | Chorea |
| HP:0002168 | Scanning speech |
| HP:0002304 | Akinesia |
| HP:0002354 | Memory impairment |
| HP:0002396 | Cogwheel rigidity |
| HP:0003281 | Increased circulating ferritin concentration |
| HP:0003581 | Adult onset |
| HP:0004305 | Involuntary movements |
| HP:0004840 | Hypochromic microcytic anemia |
| HP:0005505 | Refractory anemia |
| HP:0007703 | Abnormal retinal pigmentation |
| HP:0010837 | Decreased circulating ceruloplasmin concentration |
| HP:0010994 | Abnormal corpus striatum morphology |
| HP:0011967 | Decreased circulating copper concentration |
| HP:0012090 | Abnormal pancreas morphology |
| HP:0012179 | Craniofacial dystonia |
| HP:0012379 | Abnormal circulating enzyme concentration or activity |
| HP:0012465 | Elevated hepatic iron concentration |
| HP:0012675 | Iron accumulation in brain |
| HP:0012696 | Abnormal thalamic MRI signal intensity |
| HP:0025498 | Aceruloplasminemia |
| HP:0040303 | Decreased circulating iron concentration |
| HP:0100321 | Abnormal dentate nucleus morphology |
| HP:0100543 | Cognitive impairment |
GWAS associations
1 associations:
| Study | Trait | p-value |
|---|---|---|
| GCST001521_29 | Subcutaneous adipose tissue | 1e-6 |
MeSH disease descriptors
2 disease descriptors:
| Descriptor | Name | Tree numbers |
|---|---|---|
| D022861 | Hermanski-Pudlak Syndrome | C11.270.040.545.400; C15.378.100.100.515; C15.378.100.685.400; C15.378.140.735.400; C15.378.463.735.400; C16.320.099.515; C16.320.290.040.100.400; C16.320.565.100.102.100.400; C16.320.850.080.100.400; C17.800.621.440.102.100.400; C17.800.827.080.100.400; C18.452.648.100.102.100.400 |
| C538421 | Neurodegeneration with brain iron accumulation (NBIA) *(supp.)* |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (CPIC guideline: no)
CTD chemical–gene interactions
104 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Copper | affects binding, decreases activity, decreases expression, increases activity, increases expression (+1 more) | 9 |
| Iron | affects reaction, increases activity, decreases export, affects binding, increases oxidation (+1 more) | 5 |
| Lead | increases expression, affects binding, affects expression, decreases activity | 4 |
| Oxygen | affects reaction, increases activity, increases expression | 4 |
| Benzo(a)pyrene | increases methylation, affects cotreatment, affects expression, increases expression | 3 |
| Calcitriol | increases expression | 3 |
| Tretinoin | increases expression | 3 |
| bisphenol A | affects expression, decreases expression, increases methylation | 2 |
| sodium arsenite | decreases expression, increases expression | 2 |
| Zoledronic Acid | increases expression | 2 |
| Acetaminophen | decreases expression | 2 |
| Air Pollutants | increases abundance, increases expression | 2 |
| Estradiol | affects cotreatment, decreases expression, increases expression | 2 |
| Hydrogen Peroxide | decreases expression, decreases secretion, increases degradation | 2 |
| Smoke | decreases nitrosation, decreases expression | 2 |
| Tobacco Smoke Pollution | affects expression, decreases expression, increases expression | 2 |
| Valproic Acid | decreases expression | 2 |
| Cyclosporine | decreases expression | 2 |
| Copper Sulfate | affects cotreatment, increases expression, decreases expression | 2 |
| Particulate Matter | increases abundance, increases expression, decreases expression | 2 |
| dicrotophos | decreases expression | 1 |
| bathocuproine | affects binding, decreases reaction, increases reaction | 1 |
| chloroacetaldehyde | decreases expression | 1 |
| propionaldehyde | decreases expression | 1 |
| chlortoluron | decreases expression | 1 |
| fluoranthene | affects cotreatment, affects expression | 1 |
| potassium persulfate | increases expression | 1 |
| zinc chloride | increases expression | 1 |
| cobaltous chloride | increases expression | 1 |
| butyraldehyde | decreases expression | 1 |
Cellosaurus cell lines
1 cell lines: 1 induced pluripotent stem cell
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_C1XX | IBMS-iPSC-077-01 | Induced pluripotent stem cell | Female |
Clinical trials (associated diseases)
Via MONDO — disease-level, not drug-specific.
54 trials:
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT00202397 | Phase 2 | COMPLETED | Effect of Riluzole as a Symptomatic Approach in Patients With Chronic Cerebellar Ataxia |
| NCT02540655 | Phase 2 | COMPLETED | Efficacy and Safety Study of Stemchymal® in Polyglutamine Spinocerebellar Ataxia |
| NCT04193592 | Phase 2 | UNKNOWN | Efficacy and Safety of Pirfenidone Treatment in HPS-ILD |
| NCT05157802 | Phase 1 | UNKNOWN | Promoting Physical Activity Engagement for People With Early-stage Cerebellar Ataxia |
| NCT01104649 | Phase 2/3 | COMPLETED | Efficacy of Riluzole in Hereditary Cerebellar Ataxia |
| NCT01649687 | Phase 1/2 | COMPLETED | Treatment of Cerebellar Ataxia With Mesenchymal Stem Cells |
| NCT01958177 | Phase 1/2 | UNKNOWN | Clinical Study to Evaluate the Safety and Efficacy BMMNC in Cerebellar Ataxia |
| NCT04184453 | Early Phase 1 | UNKNOWN | Clinical Curative Effect Evaluation Study of Treatment of Oral Deferiprone Tablets in Aceruloplasminaemia Patients |
| NCT00006492 | Not specified | COMPLETED | Gluten-Free Diet in Patients With Gluten Sensitivity and Cerebellar Ataxia |
| NCT01307176 | Not specified | COMPLETED | Exercise Training Program for Cerebellar Ataxia |
| NCT02887703 | Not specified | COMPLETED | Augmenting Balance in Individuals With Cerebellar Ataxias |
| NCT02900508 | Not specified | COMPLETED | Virtual Reality-based Training in Cerebellar Ataxia |
| NCT02903290 | Not specified | COMPLETED | Longitudinal Monitoring of Energy Expenditure, Dynamic Stability and Fatigue During Gait in Patients With Cerebellar Ataxia Gene |
| NCT03120013 | Not specified | COMPLETED | Rehabilitative Trial With Cerebello-Spinal tDCS in Neurodegenerative Ataxia |
| NCT03213106 | Not specified | UNKNOWN | Cerebellar Non-invasive Stimulation in Ataxias |
| NCT03269201 | Not specified | UNKNOWN | Brain Network Activation in Patients With Movement Disorders |
| NCT03341416 | Not specified | UNKNOWN | Effects of Deep Brain Stimulation of the Dentate Nucleus on Cerebellar Ataxia |
| NCT03879018 | Not specified | RECRUITING | Retraining Reaching in Cerebellar Ataxia |
| NCT03972202 | Not specified | ACTIVE_NOT_RECRUITING | The Role of Cerebellum in Speech |
| NCT04010214 | Not specified | RECRUITING | A Registered Cohort Study on Cerebellar Ataxia in the Organization in South-East China for Cerebellar Ataxia Research (OSCCAR) |
| NCT04039048 | Not specified | UNKNOWN | Effect of ctDCS During Balance Training on Cerebellar Ataxia |
| NCT04054726 | Not specified | UNKNOWN | A Study on Cerebello-Spinal tPCS in Ataxia |
| NCT04529252 | Not specified | ACTIVE_NOT_RECRUITING | Investigating the Genetic and Phenotypic Presentation of Ataxia and Nucleotide Repeat Diseases |
| NCT04648501 | Not specified | COMPLETED | Dual Task Training for Cerebellar Ataxia |
| NCT04703595 | Not specified | COMPLETED | Chronic Cough and CANVAS (Cerebellar Ataxia With Neuropathy and Bilateral Vestibular Areflexia Syndrome) |
| NCT04750850 | Not specified | COMPLETED | Core Stability Exercises and Hereditary Ataxia |
| NCT04790981 | Not specified | COMPLETED | Effect of Motor Imagery Training on Ataxic Children After Medulloblastoma Resection |
| NCT05002218 | Not specified | COMPLETED | Training in Ataxia - Individuals With Degenerative Cerebellar Diseases |
| NCT05024240 | Not specified | UNKNOWN | Interaction of the Cognitive and Sensory-cognitive Tasks With Postural Stability in Individuals With Stability Disorders |
| NCT05095870 | Not specified | COMPLETED | Evaluation of the Peripheral Nerve Ultrasound as a Diagnostic Tool in CANVAS Neuropathies |
| NCT05132647 | Not specified | UNKNOWN | Circular Timed Up and Go (cTUG) for Ataxia: Development and Validation |
| NCT05278091 | Not specified | COMPLETED | Evaluation of the Diagnostic Value of Video-oculography in CANVAS Neuronopathies |
| NCT05351255 | Not specified | ACTIVE_NOT_RECRUITING | Motor Learning After Cerebellar Damage: The Role of the Primary Motor Cortex |
| NCT05436262 | Not specified | COMPLETED | Using Real-time fMRI Neurofeedback and Motor Imagery to Enhance Motor Timing and Precision in Cerebellar Ataxia |
| NCT05443906 | Not specified | RECRUITING | Home Exercise for Individuals With Neurodegenerative Disease |
| NCT05522374 | Not specified | RECRUITING | TIRCON International NBIA Registry |
| NCT05625620 | Not specified | UNKNOWN | Cerebellar-spinal Transcranial Pulsed Current Stimulation (tPCS) for Treatment of Neurodegenerative Ataxia |
| NCT05992207 | Not specified | COMPLETED | Utilization of Motor Imagery Training for Improvement of Balance of Ataxic Children After Medulloblastoma Resection |
| NCT06152133 | Not specified | COMPLETED | Telerehabilitation, Core Stability Exercises and Hereditary Ataxia (TRCore-ataxia) |
| NCT06450457 | Not specified | COMPLETED | Effects of High Intensity Stepping Training on Gait in Patients With Ataxia |
| NCT06573866 | Not specified | ACTIVE_NOT_RECRUITING | Enhancement of Quality of Work And Life |
| NCT06817707 | Not specified | RECRUITING | Evaluation of Urinary Dysfunction in CANVAS Patients |
| NCT07211490 | Not specified | NOT_YET_RECRUITING | rTMS for Cerebellar Ataxia in Children |
| NCT07352085 | Not specified | COMPLETED | Exoskeleton-assisted Neurorehabilitation |
| NCT07642856 | Not specified | RECRUITING | Individualized Neuro-Modulation Paired With Cerebellar Therapy |
| NCT00467831 | Phase 1/2 | TERMINATED | Pilot Study of a Multi-Drug Regimen for Severe Pulmonary Fibrosis in Hermansky-Pudlak Syndrome |
| NCT00001456 | Not specified | RECRUITING | Clinical and Basic Investigations Into Hermansky-Pudlak Syndrome |
| NCT00084305 | Not specified | ACTIVE_NOT_RECRUITING | Analysis of Specimens From Individuals With Pulmonary Fibrosis |
| NCT01417520 | Not specified | COMPLETED | Clinical and Pathophysiological Investigations Into Erdheim Chester Disease |
| NCT02368340 | Not specified | COMPLETED | A Longitudinal Study of Hermansky-Pudlak Syndrome Pulmonary Fibrosis |
| NCT02587858 | Not specified | UNKNOWN | NBIAready: Online Collection of Natural History Patient-reported Outcome Measures |
| NCT05615571 | Not specified | COMPLETED | Testing of NBIA Genes: Analysis of Genetic Heterogeneity and Validation of Mitochondrial Markers for Assessing Causality of Sequence Variants. |
| NCT05696912 | Not specified | UNKNOWN | Functional Tests to Resolve Unsolved Rare Diseases. Rares. |
| NCT06596746 | Not specified | RECRUITING | Neurodegenerative Diseases Progression Markers (MARKERS-NDD) |
Related Atlas pages
- Associated diseases: disorder of iron metabolism and transport, aceruloplasminemia
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): aceruloplasminemia, disorder of iron metabolism and transport, Hermansky-Pudlak syndrome, Hermansky-Pudlak syndrome 3, neurodegeneration with brain iron accumulation