ACTMAP
gene geneOn this page
Also known as FLJ41131
Summary
ACTMAP (actin maturation protease, HGNC:24758) is a protein-coding gene on chromosome 19q13.2, encoding Actin maturation protease (Q5BKX5). Actin maturation protease that specifically mediates the cleavage of immature acetylated N-terminal actin, thereby contributing to actin maturation.
Enables cysteine-type aminopeptidase activity and initiator methionyl aminopeptidase activity. Involved in protein processing. Predicted to be located in cytoplasm.
Source: NCBI Gene 284325 — automated summary from GO annotations (Alliance of Genome Resources).
At a glance
- GWAS associations: 1
- Clinical variants (ClinVar): 12 total
- GTEx eGene: eQTL in 41 tissues, sQTL in 15 (q < 0.05)
- Constraint (gnomAD): pLI 0.00 (LoF-tolerant), LOEUF 1.12 (unconstrained)
- MANE Select transcript:
NM_198476
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:24758 |
| Approved symbol | ACTMAP |
| Name | actin maturation protease |
| Location | 19q13.2 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | FLJ41131 |
| Ensembl gene | ENSG00000188493 |
| Ensembl biotype | protein_coding |
| OMIM | 620093 |
| Entrez | 284325 |
Gene structure
Transcript identifiers
Ensembl transcripts: 23 — 19 protein_coding, 3 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined
MANE Select: ENST00000378313
Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 1, TSL 2: 4, TSL 3: 3, TSL 5: 2
ENST00000378313, ENST00000469741, ENST00000470681, ENST00000594163, ENST00000596809, ENST00000596940, ENST00000597507, ENST00000598352, ENST00000598485, ENST00000600139, ENST00000862156, ENST00000862157, ENST00000862158, ENST00000982427, ENST00000982428, ENST00000982429, ENST00000982430, ENST00000982431, ENST00001059775, ENST00001059776, ENST00001059777, ENST00001059778, ENST00001138741
RefSeq mRNA: 6 — MANE Select: NM_198476
NM_001353805, NM_001353806, NM_001353807, NM_001353808, NM_001353809, NM_198476
CCDS: CCDS12564
Canonical transcript exons
ENST00000378313 — 6 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001510447 | 40743905 | 40743975 |
| ENSE00001510449 | 40749481 | 40750477 |
| ENSE00003053599 | 40744067 | 40744196 |
| ENSE00003590458 | 40745130 | 40745198 |
| ENSE00003635044 | 40740861 | 40742770 |
| ENSE00003667061 | 40744559 | 40744683 |
Expression profiles
Bgee: expression breadth ubiquitous, 266 present calls, max score 91.51.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 16.7499 / max 148.7888, expressed in 1800 samples.
Highest expression (Bgee): pancreatic ductal cell, primordial germ cell in gonad, hindlimb stylopod muscle, mucosa of transverse colon, buccal mucosa cell.
Genetic regulation across tissues (GTEx eQTL / sQTL)
ACTMAP is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 41 tissues and its splicing (sQTL) in 15 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.
showing 20 of 56 significant tissue × QTL associations:
| Tissue | QTL | q-value | Slope | Lead variant |
|---|---|---|---|---|
| Thyroid | eqtl | 2.3e-44 | -0.54 | 19:40746867:T:C |
| Whole Blood | eqtl | 1.6e-29 | +1.15 | 19:40750305:G:T |
| Artery Aorta | eqtl | 1.9e-26 | -0.55 | 19:40749595:C:G |
| Nerve Tibial | eqtl | 2.9e-23 | -0.44 | 19:40746867:T:C |
| Esophagus Mucosa | eqtl | 7.8e-22 | -0.39 | 19:40749595:C:G |
| Artery Tibial | eqtl | 1.9e-17 | -0.37 | 19:40749595:C:G |
| Skin Sun Exposed Lower leg | eqtl | 2.2e-17 | -0.30 | 19:40751911:C:A |
| Pituitary | eqtl | 4.6e-16 | -0.46 | 19:40746867:T:C |
| Prostate | eqtl | 1.5e-15 | -0.46 | 19:40746867:T:C |
| Colon Sigmoid | eqtl | 8.3e-15 | -0.35 | 19:40749595:C:G |
| Skin Not Sun Exposed Suprapubic | eqtl | 2.0e-14 | -0.33 | 19:40749595:C:G |
| Pancreas | eqtl | 2.2e-14 | -0.41 | 19:40738982:G:A |
| Breast Mammary Tissue | eqtl | 3.9e-14 | -0.36 | 19:40751911:C:A |
| Cells Cultured fibroblasts | eqtl | 2.1e-13 | +0.74 | 19:40750305:G:T |
| Esophagus Gastroesophageal Junction | eqtl | 3.8e-12 | -0.34 | 19:40746867:T:C |
| Brain Cerebellum | eqtl | 1.1e-11 | -0.52 | 19:40745275:T:G |
| Brain Cerebellar Hemisphere | eqtl | 3.9e-11 | -0.45 | 19:40745275:T:G |
| Heart Left Ventricle | eqtl | 6.9e-11 | +1.12 | 19:40750305:G:T |
| Adipose Subcutaneous | eqtl | 8.7e-11 | +0.27 | 19:40698229:G:A |
| Esophagus Muscularis | eqtl | 4.5e-10 | -0.30 | 19:40751911:C:A |
FANTOM5 promoters
3 alternative TSS:
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 181007 | 16.1699 | 1796 |
| 181009 | 0.4675 | 206 |
| 181008 | 0.1124 | 31 |
Top tissues by expression
showing 100 of 282 tissues by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| pancreatic ductal cell | CL:0002079 | 91.51 | gold quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 86.60 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 86.22 | gold quality |
| mucosa of transverse colon | UBERON:0004991 | 85.99 | gold quality |
| buccal mucosa cell | CL:0002336 | 84.47 | gold quality |
| right lobe of liver | UBERON:0001114 | 84.33 | gold quality |
| lower lobe of lung | UBERON:0008949 | 83.88 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 83.76 | gold quality |
| oocyte | CL:0000023 | 83.71 | gold quality |
| right adrenal gland | UBERON:0001233 | 83.35 | gold quality |
| jejunal mucosa | UBERON:0000399 | 83.14 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 83.00 | gold quality |
| granulocyte | CL:0000094 | 82.56 | gold quality |
| duodenum | UBERON:0002114 | 82.53 | gold quality |
| vastus lateralis | UBERON:0001379 | 82.16 | silver quality |
| small intestine Peyer’s patch | UBERON:0003454 | 82.07 | gold quality |
| left adrenal gland | UBERON:0001234 | 81.95 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 81.77 | gold quality |
| gastrocnemius | UBERON:0001388 | 81.73 | gold quality |
| small intestine | UBERON:0002108 | 81.70 | gold quality |
| apex of heart | UBERON:0002098 | 81.57 | gold quality |
| adrenal cortex | UBERON:0001235 | 81.56 | gold quality |
| quadriceps femoris | UBERON:0001377 | 81.50 | silver quality |
| stromal cell of endometrium | CL:0002255 | 81.31 | gold quality |
| muscle of leg | UBERON:0001383 | 81.21 | gold quality |
| right lung | UBERON:0002167 | 80.94 | gold quality |
| upper lobe of lung | UBERON:0008948 | 80.75 | gold quality |
| muscle organ | UBERON:0001630 | 80.73 | gold quality |
| transverse colon | UBERON:0001157 | 80.62 | gold quality |
| upper lobe of left lung | UBERON:0008952 | 80.52 | gold quality |
| ileal mucosa | UBERON:0000331 | 80.43 | gold quality |
| ventricular zone | UBERON:0003053 | 80.38 | gold quality |
| secondary oocyte | CL:0000655 | 80.25 | gold quality |
| right testis | UBERON:0004534 | 80.19 | gold quality |
| testis | UBERON:0000473 | 80.05 | gold quality |
| body of stomach | UBERON:0001161 | 80.02 | gold quality |
| left testis | UBERON:0004533 | 79.95 | gold quality |
| metanephros cortex | UBERON:0010533 | 79.91 | gold quality |
| adrenal gland | UBERON:0002369 | 79.87 | gold quality |
| diaphragm | UBERON:0001103 | 79.85 | gold quality |
| spleen | UBERON:0002106 | 79.63 | gold quality |
| jejunum | UBERON:0002115 | 79.56 | gold quality |
| leukocyte | CL:0000738 | 79.30 | gold quality |
| monocyte | CL:0000576 | 79.25 | gold quality |
| body of pancreas | UBERON:0001150 | 79.20 | gold quality |
| mononuclear cell | CL:0000842 | 79.19 | gold quality |
| right lobe of thyroid gland | UBERON:0001119 | 79.18 | gold quality |
| left lobe of thyroid gland | UBERON:0001120 | 79.05 | gold quality |
| cortex of kidney | UBERON:0001225 | 78.92 | gold quality |
| parotid gland | UBERON:0001831 | 78.92 | gold quality |
| pigmented layer of retina | UBERON:0001782 | 78.84 | gold quality |
| amniotic fluid | UBERON:0000173 | 78.81 | gold quality |
| heart left ventricle | UBERON:0002084 | 78.63 | gold quality |
| cranial nerve II | UBERON:0000941 | 78.62 | gold quality |
| embryo | UBERON:0000922 | 78.56 | gold quality |
| thyroid gland | UBERON:0002046 | 78.51 | gold quality |
| bone marrow cell | CL:0002092 | 78.40 | silver quality |
| ganglionic eminence | UBERON:0004023 | 78.35 | gold quality |
| cardiac ventricle | UBERON:0002082 | 78.33 | gold quality |
| tibialis anterior | UBERON:0001385 | 78.16 | silver quality |
| intestine | UBERON:0000160 | 78.07 | gold quality |
| rectum | UBERON:0001052 | 77.98 | gold quality |
| mucosa of paranasal sinus | UBERON:0005030 | 77.82 | silver quality |
| skeletal muscle tissue | UBERON:0001134 | 77.76 | gold quality |
| stomach | UBERON:0000945 | 77.58 | gold quality |
| mucosa of stomach | UBERON:0001199 | 77.58 | gold quality |
| muscle tissue | UBERON:0002385 | 77.58 | gold quality |
| colon | UBERON:0001155 | 77.57 | gold quality |
| adult mammalian kidney | UBERON:0000082 | 77.54 | gold quality |
| large intestine | UBERON:0000059 | 77.34 | gold quality |
| muscle layer of sigmoid colon | UBERON:0035805 | 77.33 | gold quality |
| endothelial cell | CL:0000115 | 77.25 | silver quality |
| gall bladder | UBERON:0002110 | 77.13 | gold quality |
| liver | UBERON:0002107 | 77.11 | gold quality |
| vermiform appendix | UBERON:0001154 | 77.10 | gold quality |
| metanephros | UBERON:0000081 | 77.08 | gold quality |
| fundus of stomach | UBERON:0001160 | 77.06 | gold quality |
| omental fat pad | UBERON:0010414 | 77.06 | gold quality |
| lung | UBERON:0002048 | 77.03 | gold quality |
| peritoneum | UBERON:0002358 | 77.03 | gold quality |
| adipose tissue of abdominal region | UBERON:0007808 | 76.90 | gold quality |
| inferior olivary complex | UBERON:0002127 | 76.81 | gold quality |
| right uterine tube | UBERON:0001302 | 76.79 | gold quality |
| placenta | UBERON:0001987 | 76.79 | gold quality |
| esophagus mucosa | UBERON:0002469 | 76.63 | gold quality |
| subcutaneous adipose tissue | UBERON:0002190 | 76.52 | gold quality |
| caecum | UBERON:0001153 | 76.50 | gold quality |
| lower esophagus muscularis layer | UBERON:0035833 | 76.49 | gold quality |
| esophagus | UBERON:0001043 | 76.48 | gold quality |
| lower esophagus | UBERON:0013473 | 76.46 | gold quality |
| adipose tissue | UBERON:0001013 | 76.36 | gold quality |
| blood | UBERON:0000178 | 76.34 | gold quality |
| C1 segment of cervical spinal cord | UBERON:0006469 | 76.31 | gold quality |
| kidney | UBERON:0002113 | 76.27 | gold quality |
| skin of leg | UBERON:0001511 | 76.21 | gold quality |
| dorsal motor nucleus of vagus nerve | UBERON:0002870 | 76.17 | gold quality |
| prostate gland | UBERON:0002367 | 75.99 | gold quality |
| pancreas | UBERON:0001264 | 75.98 | gold quality |
| heart | UBERON:0000948 | 75.96 | gold quality |
| saliva-secreting gland | UBERON:0001044 | 75.94 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 12.89 |
HPA expression
RNA tissue specificity: Low tissue specificity
showing 60 of 79 HPA tissues / cells by nTPM:
| Tissue / cell | Axis | nTPM | Protein (IHC) |
|---|---|---|---|
| Spinal cord | tissue | 15.6 | |
| Skeletal muscle | tissue | 14.4 | not detected |
| Corpus callosum | tissue | 14.3 | |
| Medulla oblongata | tissue | 13.6 | |
| Superior colliculi | tissue | 13.5 | |
| Thalamus | tissue | 12.6 | |
| Periaqueductal gray | tissue | 12.6 | |
| Midbrain | tissue | 12.3 | |
| Substantia nigra | tissue | 12.3 | |
| Hippocampal formation | tissue | 12.0 | |
| Pons | tissue | 11.6 | |
| Hypothalamus | tissue | 11.5 | |
| Cerebral cortex | tissue | 10.1 | low |
| Small intestine | tissue | 10.1 | medium |
| Somatosensory cortex | tissue | 10.1 | |
| Motor cortex | tissue | 10.0 | |
| Septum | tissue | 10.0 | |
| Duodenum | tissue | 9.9 | medium |
| Choroid plexus | tissue | 9.8 | |
| Ventral forebrain | tissue | 9.8 | |
| Olfactory bulb | tissue | 9.8 | |
| Tongue | tissue | 9.6 | |
| Putamen | tissue | 9.5 | |
| Temporal cortex | tissue | 9.4 | |
| Occipital cortex | tissue | 9.4 | |
| Frontal cortex | tissue | 9.3 | |
| Amygdala | tissue | 9.3 | |
| Cerebellum | tissue | 9.3 | not detected |
| Insular cortex | tissue | 9.2 | |
| Prefrontal cortex | tissue | 9.1 | |
| Basal ganglia | tissue | 9.0 | not detected |
| Retrosplenial cortex | tissue | 8.9 | |
| Entorhinal cortex | tissue | 8.8 | |
| Retrosplenial and cingulate cortex | tissue | 8.4 | |
| Caudate putamen | tissue | 8.2 | |
| Locus coeruleus | tissue | 7.4 | |
| Hippocampus | tissue | 7.4 | not detected |
| Rectum | tissue | 6.6 | medium |
| Nucleus accumbens | tissue | 6.5 | |
| Appendix | tissue | 6.5 | medium |
| Epididymis | tissue | 6.1 | medium |
| Gallbladder | tissue | 5.8 | low |
| Bone marrow | tissue | 5.6 | not detected |
| Tonsil | tissue | 5.6 | low |
| Lung | tissue | 5.5 | not detected |
| Spleen | tissue | 5.5 | low |
| Parathyroid gland | tissue | 5.4 | medium |
| Thyroid gland | tissue | 5.3 | medium |
| Skin 1 | tissue | 5.2 | low |
| Lymph node | tissue | 5.1 | not detected |
| Thymus | tissue | 5.1 | |
| Colon | tissue | 5.0 | medium |
| Pancreas | tissue | 5.0 | low |
| Stomach 1 | tissue | 4.9 | medium |
| Retina | tissue | 4.9 | |
| Testis | tissue | 4.8 | medium |
| Vagina | tissue | 4.7 | |
| Pituitary gland | tissue | 4.5 | |
| Placenta | tissue | 4.5 | low |
| Heart muscle | tissue | 4.2 | not detected |
Brain sub-regions (HPA Brain Atlas): detected in 190; highest nTPM — Ventral spinal cord (15.6), Dorsal spinal cord (14.6), White matter (14.3), Area postrema (13.3), Parieto-temporal junction (white matter) (13.0).
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
Targeting ACTMAP by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific).
showing 30 of 71 miRNAs:
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-450A-1-3P | 100.00 | 69.33 | 1837 |
| HSA-MIR-6891-5P | 99.98 | 66.53 | 1372 |
| HSA-MIR-507 | 99.97 | 70.11 | 1915 |
| HSA-MIR-767-5P | 99.95 | 70.85 | 993 |
| HSA-MIR-4492 | 99.87 | 68.25 | 3611 |
| HSA-MIR-6124 | 99.87 | 69.78 | 3551 |
| HSA-MIR-3065-3P | 99.87 | 70.25 | 1407 |
| HSA-MIR-548AR-3P | 99.85 | 71.26 | 3889 |
| HSA-MIR-6756-5P | 99.82 | 67.97 | 2466 |
| HSA-MIR-6739-5P | 99.80 | 67.87 | 2806 |
| HSA-MIR-4319 | 99.76 | 69.83 | 2586 |
| HSA-MIR-3680-3P | 99.75 | 72.51 | 3095 |
| HSA-MIR-6733-5P | 99.74 | 67.94 | 2759 |
| HSA-MIR-4446-5P | 99.72 | 69.19 | 2544 |
| HSA-MIR-6766-5P | 99.68 | 67.70 | 2325 |
| HSA-MIR-762 | 99.58 | 66.61 | 1994 |
| HSA-MIR-1252-3P | 99.55 | 67.71 | 2862 |
| HSA-MIR-4437 | 99.52 | 65.29 | 1266 |
| HSA-MIR-12117 | 99.50 | 67.57 | 868 |
| HSA-MIR-4441 | 99.49 | 66.56 | 3216 |
| HSA-MIR-4498 | 99.47 | 67.42 | 2360 |
| HSA-MIR-1275 | 99.47 | 67.90 | 2749 |
| HSA-MIR-6722-3P | 99.45 | 67.62 | 1919 |
| HSA-MIR-940 | 99.37 | 66.14 | 2064 |
| HSA-MIR-125A-5P | 99.36 | 70.59 | 1640 |
| HSA-MIR-125B-5P | 99.36 | 70.36 | 1662 |
| HSA-MIR-6893-5P | 99.31 | 66.25 | 2119 |
| HSA-MIR-6808-5P | 99.31 | 66.23 | 2150 |
| HSA-MIR-4505 | 99.27 | 67.81 | 2678 |
| HSA-MIR-5787 | 99.22 | 67.86 | 2628 |
Functional genomics
gnomAD constraint: pLI 3e-08, LOEUF 1.12, missense Z -0.437 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD
Regional missense constraint (gnomAD RMC): no regional variation along ENST00000378313 — one region, missense o/e 1.03.
Cross-species orthologs
5 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | actmap | ENSDARG00000039513 |
| mus_musculus | Actmap | ENSMUSG00000078786 |
| rattus_norvegicus | Actmap | ENSRNOG00000037715 |
| drosophila_melanogaster | CG33108 | FBGN0053108 |
| caenorhabditis_elegans | K07A1.3 | WBGENE00010610 |
Mouse-model phenotypes
Observed phenotypes of the mouse ortholog (MGI:3041247) from MGI (Alliance of Genome Resources) — knockout/mutant phenotypes, ranked by annotation count. 11 distinct phenotype terms.
| Mouse phenotype (MP) | Records |
|---|---|
| muscle weakness | 1 |
| decreased heart weight | 1 |
| impaired skeletal muscle contractility | 1 |
| abnormal skeletal muscle fiber morphology | 1 |
| impaired glucose tolerance | 1 |
| centrally nucleated skeletal muscle fibers | 1 |
| enhanced contextual conditioning behavior | 1 |
| enhanced cued conditioning behavior | 1 |
| decreased grip strength | 1 |
| increased freezing behavior | 1 |
| abnormal actin cytoskeleton morphology | 1 |
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 |
|---|---|---|---|
| Bos taurus | A6QQD2 | 83.2% | Diamond |
| Xenopus tropicalis | B0BM95 | 52.2% | 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 |
|---|---|---|
| RAB4B-EGLN2 | ncRNA | 100529264 |
| EGLN2 | protein-coding | 112398 |
| RAB4B | protein-coding | 53916 |
| SNRPA | protein-coding | 6626 |
| MIA | protein-coding | 8190 |
| COQ8B | protein-coding | 79934 |
| ITPKC | protein-coding | 80271 |
| LTBP4 | protein-coding | 8425 |
| NUMBL | protein-coding | 9253 |
| MIA-RAB4B | ncRNA | 100529262 |
Protein
Protein identifiers
Actin maturation protease — Q5BKX5 (reviewed: Q5BKX5)
Alternative names: Actin aminopeptidase ACTMAP
All UniProt accessions (7): M0QXR4, M0R0A6, M0R2U9, M0R322, M0R368, Q5BKX5, Q6ZWG5
UniProt curated annotations — full annotation on UniProt →
Function. Actin maturation protease that specifically mediates the cleavage of immature acetylated N-terminal actin, thereby contributing to actin maturation. Cleaves N-terminal acetylated methionine of immature cytoplasmic beta- and gamma-actins ACTB and ACTG1 after translation. Cleaves N-terminal acetylated cysteine of muscle alpha-actins ACTA1, ACTC1 and ACTA2 after canonical removal of N-terminal methionine.
Subunit / interactions. Interacts (via N-terminus) with PFN2 isoforms IIa and IIb; the interactions may facilitate efficient cleavage of the acetylated N-terminus of immature actin. Interacts with PFN1.
Subcellular location. Cytoplasm.
Domain organisation. The N-terminal proline-rich disordered region contributes to the interaction with PFN2.
Similarity. Belongs to the ACTMAP family.
Isoforms (3)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q5BKX5-1 | 1 | yes |
| Q5BKX5-2 | 2 | |
| Q5BKX5-3 | 3 |
RefSeq proteins (6): NP_001340734, NP_001340735, NP_001340736, NP_001340737, NP_001340738, NP_940878* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR040043 | ACTMAP | Family |
Pfam: PF21646
Catalyzed reactions (Rhea)
- N-terminal N(alpha)-acetyl-L-methionyl-L-aspartyl-[protein] + H2O = N-terminal L-aspartyl-[protein] + N-acetyl-L-methionine (RHEA:74571)
- N-terminal N(alpha)-acetyl-L-methionyl-L-glutamyl-[protein] + H2O = N-terminal L-glutamyl-[protein] + N-acetyl-L-methionine (RHEA:74575)
- N-terminal N(alpha)-acetyl-L-cysteinyl-L-aspartyl-[protein] + H2O = N-terminal L-aspartyl-[protein] + N-acetyl-L-cysteine (RHEA:74579)
- N-terminal N(alpha)-acetyl-L-cysteinyl-L-glutamyl-[protein] + H2O = N-terminal L-glutamyl-[protein] + N-acetyl-L-cysteine (RHEA:74583)
UniProt features (12 total): compositionally biased region 3, region of interest 2, splice variant 2, chain 1, mutagenesis site 1, sequence conflict 1, active site 1, modified residue 1
Structure
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q5BKX5-F1 | 83.63 | 0.60 |
Human Protein Atlas
Protein class: Predicted intracellular proteins
Protein evidence: Evidence at protein level
Subcellular location (HPA, imaging): intermediate filaments; centriolar satellite
Antibody reliability (HPA): IH approved · IF approved
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 |
|---|---|
| 132 |
Post-translational modifications (1)
| Type | Positions |
|---|---|
| Phosphoserine | 316 |
Mutagenesis-validated functional residues (1)
| Position | Phenotype |
|---|---|
| 132 | catalytically inactive, disrupts n-terminal cleavage of immature actin. |
Function
Pathways and Gene Ontology
Reactome pathways
0 curated (TAS) of 0; 0 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).
MSigDB gene sets: 90 (showing top):
GOBP_PROTEIN_MATURATION, CREIGHTON_ENDOCRINE_THERAPY_RESISTANCE_1, GOMF_CYSTEINE_TYPE_PEPTIDASE_ACTIVITY, DODD_NASOPHARYNGEAL_CARCINOMA_UP, DEURIG_T_CELL_PROLYMPHOCYTIC_LEUKEMIA_UP, GOBP_PROTEOLYSIS, GARY_CD5_TARGETS_UP, GOMF_PEPTIDASE_ACTIVITY, GOMF_AMINOPEPTIDASE_ACTIVITY, GOMF_EXOPEPTIDASE_ACTIVITY, TCANNTGAY_SREBP1_01, GOBP_PROTEIN_PROCESSING, NFY_Q6_01, GOMF_CYSTEINE_TYPE_EXOPEPTIDASE_ACTIVITY, CEBPZ_TARGET_GENES
GO Biological Process (2): protein processing (GO:0016485), proteolysis (GO:0006508)
GO Molecular Function (5): initiator methionyl aminopeptidase activity (GO:0004239), cysteine-type aminopeptidase activity (GO:0070005), aminopeptidase activity (GO:0004177), peptidase activity (GO:0008233), hydrolase activity (GO:0016787)
GO Cellular Component (1): cytoplasm (GO:0005737)
GO top-level categories
11 GO namespaces:
| Category | Terms |
|---|---|
| aminopeptidase activity | 2 |
| proteolysis | 1 |
| protein maturation | 1 |
| protein metabolic process | 1 |
| cysteine-type exopeptidase activity | 1 |
| exopeptidase activity | 1 |
| hydrolase activity | 1 |
| catalytic activity, acting on a protein | 1 |
| catalytic activity | 1 |
| intracellular anatomical structure | 1 |
| cellular anatomical structure | 1 |
Experimentally-supported GO annotations
GO terms backed by direct experimental evidence (ECO experimental codes) — 3 of 8 annotations. The rest are phylogenetic / computational / electronic (IEA).
3 experimentally-supported GO terms:
| GO term | NS | Evidence |
|---|---|---|
| protein processing | BP | direct assay |
| cysteine-type aminopeptidase activity | MF | direct assay |
| initiator methionyl aminopeptidase activity | MF | direct assay |
Protein interactions and networks
STRING
showing 15 of 762 interactions by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| ACTMAP | TMEM41B | Q5BJD5 | 542 |
| ACTMAP | KCTD14 | Q9BQ13 | 524 |
| ACTMAP | SMIM3 | Q9BZL3 | 522 |
| ACTMAP | SPRED3 | Q2MJR0 | 514 |
| ACTMAP | USPL1 | Q5W0Q7 | 482 |
| ACTMAP | MPHOSPH9 | Q99550 | 465 |
| ACTMAP | THOC2 | Q8NI27 | 461 |
| ACTMAP | ATXN10 | Q9UBB4 | 459 |
| ACTMAP | VPS16 | Q9H269 | 459 |
| ACTMAP | OR51G1 | Q8NGK1 | 441 |
| ACTMAP | CLCN7 | P51798 | 440 |
| ACTMAP | C19orf47 | Q8N9M1 | 429 |
| ACTMAP | OR5D16 | Q8NGK9 | 428 |
| ACTMAP | C4orf17 | Q53FE4 | 419 |
| ACTMAP | RAB4B | P22750 | 409 |
IntAct
Human interaction partners of ACTMAP in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).
1 partners by confidence:
| Partner | Interaction type | MIscore | Records |
|---|---|---|---|
| XIAP | association | 0.350 | 2 |
Disease & clinical
Genetic variants
Variant evidence for ACTMAP: 12 ClinVar records (0 pathogenic / likely pathogenic); 1 GWAS association.
ClinVar
12 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 8 |
| Likely benign | 0 |
| Benign | 0 |
SpliceAI
Top 10 splice-impact sites by Δscore (adjacent positions with the same effect merged into one range; 36 predictions of 631):
| Position(s) | Effect | Δscore | Sites |
|---|---|---|---|
| 19:40742771–40742772 | acceptor_loss | 1.0000 | 6 |
| 19:40743988 | acceptor_gain | 1.0000 | |
| 19:40743903–40743904 | donor_loss | 0.9900 | 5 |
| 19:40743910 | donor_loss | 0.9900 | |
| 19:40743913–40743914 | donor_loss | 0.9900 | 6 |
| 19:40743987 | acceptor_gain | 0.9900 | 2 |
| 19:40744557–40744558 | donor_loss | 0.9900 | 5 |
| 19:40744684–40744685 | acceptor_loss | 0.9900 | 4 |
| 19:40745012 | donor_gain | 0.9900 | |
| 19:40749479–40749480 | donor_loss | 0.9900 | 5 |
AlphaMissense
598 missense substitutions predicted likely pathogenic (of 2,223 scored), across 157 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 |
|---|---|---|---|
| M139 | 9 | 0.868 | 0.971 |
| D218 | 8 | 0.977 | 0.989 |
| H234 | 8 | 0.961 | 0.993 |
| F171 | 8 | 0.954 | 0.993 |
| D220 | 8 | 0.915 | 0.978 |
| S308 | 8 | 0.900 | 0.994 |
| S294 | 8 | 0.859 | 0.977 |
| H223 | 8 | 0.855 | 0.964 |
| D97 | 8 | 0.718 | 0.901 |
| W235 | 7 | 0.983 | 0.996 |
| W300 | 7 | 0.981 | 0.995 |
| W115 | 7 | 0.968 | 0.997 |
| C132 | 7 | 0.957 | 0.979 |
| E169 | 7 | 0.956 | 0.988 |
| N309 | 7 | 0.919 | 0.992 |
| F109 | 7 | 0.902 | 0.963 |
| Q127 | 7 | 0.845 | 0.990 |
| N222 | 7 | 0.838 | 0.963 |
| F263 | 7 | 0.805 | 0.949 |
| D256 | 7 | 0.734 | 0.819 |
HPA cancer prognostics
RNA cancer specificity: Low cancer specificity
Human Protein Atlas survival analysis — favorable = higher expression predicts better survival.
1 prognostic cancer types:
| Cancer | Prognostic | p-value |
|---|---|---|
| Kidney Renal Clear Cell Carcinoma (validation) | unfavorable | 1.55e-05 |
Disease associations
OMIM: gene MIM:620093 | disease phenotypes:
GWAS associations
1 associations:
| Study | Trait | p-value |
|---|---|---|
| GCST009921_7 | Carotid intima media thickness (mean) | 1e-10 |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (CPIC guideline: no)
CTD chemical–gene interactions
24 total (human), top 24 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Valproic Acid | affects expression, increases methylation | 2 |
| dicrotophos | increases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| mancozeb | decreases expression | 1 |
| polyhexamethyleneguanidine | affects expression | 1 |
| perfluorooctane sulfonic acid | increases expression | 1 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, decreases expression | 1 |
| ICG 001 | decreases expression | 1 |
| abrine | increases expression | 1 |
| dorsomorphin | affects cotreatment, decreases expression | 1 |
| Resveratrol | affects cotreatment, decreases expression | 1 |
| Arsenic | affects methylation | 1 |
| Benzo(a)pyrene | decreases methylation | 1 |
| Caffeine | increases phosphorylation | 1 |
| Carbamazepine | affects expression | 1 |
| Diazinon | increases methylation | 1 |
| Estradiol | decreases expression | 1 |
| Phenylmercuric Acetate | affects cotreatment, decreases expression | 1 |
| Plant Extracts | affects cotreatment, decreases expression | 1 |
| Thimerosal | decreases expression | 1 |
| Urethane | decreases expression | 1 |
| Cadmium Chloride | increases expression | 1 |
| Okadaic Acid | decreases expression | 1 |
| Lactic Acid | decreases expression | 1 |
Clinical trials (associated diseases)
Via MONDO — disease-level, not drug-specific.
52 trials:
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT05474924 | Phase 4 | UNKNOWN | The Role of Budesonide Intrapolyp Injection in CRSwNP |
| NCT00673608 | Phase 4 | COMPLETED | Magnetic Resonance Imaging (MRI) Assessments of the Heart and Liver Iron Load in Patients With Transfusion Induced Iron Overload |
| NCT00235391 | Phase 3 | COMPLETED | Expanded Access of Deferasirox to Patients With Congenital Disorders of Red Blood Cells and Chronic Iron Overload |
| NCT00001962 | Phase 2 | TERMINATED | A Study to Determine Whether Therapy With Daclizumab Will Benefit Patients With Bone Marrow Failure |
| NCT00011505 | Phase 2 | COMPLETED | Mobilization of Stem Cells With G-CSF for Collection From Patients With Diamond-Blackfan Anemia |
| NCT00301834 | Phase 2 | COMPLETED | Alemtuzumab, Fludarabine, and Busulfan Followed By Donor Stem Cell Transplant in Treating Young Patients With Hematologic Disorders |
| NCT00957931 | Phase 2 | COMPLETED | Allo-HCT MUD for Non-malignant Red Blood Cell (RBC) Disorders: Sickle Cell, Thal, and DBA: Reduced Intensity Conditioning, Co-tx MSCs |
| NCT01529827 | Phase 2 | COMPLETED | Fludarabine Phosphate, Melphalan, and Low-Dose Total-Body Irradiation Followed by Donor Peripheral Blood Stem Cell Transplant in Treating Patients With Hematologic Malignancies |
| NCT02386267 | Phase 2 | UNKNOWN | L-leucine in Diamond Blackfan Anemia Patients |
| NCT02512679 | Phase 2 | TERMINATED | Related Hematopoietic Stem Cell Transplantation (HSCT) for Genetic Diseases of Blood Cells |
| NCT03333486 | Phase 2 | TERMINATED | Fludarabine Phosphate, Cyclophosphamide, Total Body Irradiation, and Donor Stem Cell Transplant in Treating Patients With Blood Cancer |
| NCT04099966 | Phase 2 | RECRUITING | AlloSCT for Malignant and Non-malignant Hematologic Diseases Utilizing Alpha/Beta T Cell and CD19+ B Cell Depletion |
| NCT04965597 | Phase 2 | COMPLETED | Treosulfan-Based Conditioning Regimen Before a Blood or Bone Marrow Transplant for the Treatment of Bone Marrow Failure Diseases (BMT CTN 1904) |
| NCT01586455 | Phase 1 | COMPLETED | Human Placental-Derived Stem Cell Transplantation |
| NCT01917708 | Phase 1 | COMPLETED | Bone Marrow Transplant With Abatacept for Non-Malignant Diseases |
| NCT02997020 | Not specified | ACTIVE_NOT_RECRUITING | Ivacaftor for Acquired CFTR Dysfunction in Chronic Rhinosinusitis (EDSPD Protocol) |
| NCT03379701 | Not specified | COMPLETED | Applications of Nanotechnology and Chemical Sensors for the Detection and Identification of Chronic Sinusitis Subtypes by Respiratory Samples |
| NCT04868695 | Not specified | UNKNOWN | Subjective and Objective Outcome of ESS in CRSwNP |
| NCT01529060 | Phase 2/3 | COMPLETED | Phenylbutyrate Therapy for Maple Syrup Urine Disease |
| NCT03655223 | Not specified | ACTIVE_NOT_RECRUITING | Early Check: Expanded Screening in Newborns |
| NCT04248062 | Not specified | COMPLETED | Patient and Observer Reported Outcome Measurements in Inborn Errors of Metabolism |
| NCT04602325 | Not specified | RECRUITING | Systemic Biomarkers of Brain Injury From Hyperammonemia |
| NCT04828863 | Not specified | COMPLETED | Neurocognitive Outcomes and Quality of Life in Adults With Maple Syrup Urine Disease (MSUD) |
| NCT05051657 | Not specified | COMPLETED | Evaluation of the Express Plus Range |
| NCT05687474 | Not specified | COMPLETED | Baby Detect : Genomic Newborn Screening |
| NCT05910151 | Not specified | UNKNOWN | Selective Screening of Children for Hereditary Metabolic Diseases by Tandem Mass Spectrometry in Kazakhstan |
| NCT06298292 | Not specified | UNKNOWN | Acceptability/Tolerance of Protein Substitutes in Tablet Form for the Dietary Management of Rare Aminoacidopathies |
| NCT06581991 | Not specified | NOT_YET_RECRUITING | Liquid Valine and Isoleucine in Maple Syrup Urine Disease |
| NCT06664840 | Not specified | NOT_YET_RECRUITING | MyRareDiet A Novel Diet Tracking Tool |
| NCT00176852 | Phase 2/3 | COMPLETED | Stem Cell Transplant for Hemoglobinopathy |
| NCT00176878 | Phase 2/3 | COMPLETED | Stem Cell Transplant for Bone Marrow Failure Syndromes |
| NCT00305708 | Phase 1/2 | COMPLETED | Busulfan, Antithymocyte Globulin, and Fludarabine Followed By a Donor Stem Cell Transplant in Treating Young Patients With Blood Disorders, Bone Marrow Disorders, Chronic Myelogenous Leukemia in First Chronic Phase, or Acute Myeloid Leukemia in First Remission |
| NCT01362595 | Phase 1/2 | COMPLETED | Pilot Phase I/II Study of Amino Acid Leucine in Treatment of Patients With Transfusion-Dependent Diamond Blackfan Anemia |
| NCT01419704 | Phase 1/2 | WITHDRAWN | Phase I/II Pilot Study of Mixed Chimerism to Treat Hemoglobinopathies |
| NCT01464164 | Phase 1/2 | TERMINATED | Safety and Efficacy Study of Sotatercept in Adults With Transfusion Dependent Diamond Blackfan Anemia |
| NCT01966367 | Phase 1/2 | ACTIVE_NOT_RECRUITING | CD34+ (Non-Malignant) Stem Cell Selection for Patients Receiving Allogeneic Stem Cell Transplantation |
| NCT02065869 | Phase 1/2 | TERMINATED | Safety Study of Gene Modified Donor T-cells Following TCRαβ+ Depleted Stem Cell Transplant |
| NCT03513328 | Phase 1/2 | COMPLETED | Conditioning Regimen for Allogeneic Hematopoietic Stem-Cell Transplantation |
| NCT03653338 | Phase 1/2 | RECRUITING | T-Cell Depleted Alternative Donor Bone Marrow Transplant for Sickle Cell Disease (SCD) and Other Anemias |
| NCT03733249 | Phase 1/2 | TERMINATED | Long Term Follow-up Study for Patients Enrolled on the BP-004 Clinical Study |
| NCT03966053 | Phase 1/2 | TERMINATED | The Use of Trifluoperazine in Transfusion Dependent DBA |
| NCT00027274 | Not specified | RECRUITING | Cancer in Inherited Bone Marrow Failure Syndromes |
| NCT00244010 | Not specified | COMPLETED | Partially Matched Stem Cell Transplantation for Patients With Refractory Severe Aplastic Anemia or Refractory Cytopenias |
| NCT00290628 | Not specified | TERMINATED | Donor Umbilical Cord Blood Transplant in Treating Patients With Hematologic Cancer |
| NCT01114776 | Not specified | COMPLETED | Multi-Center Study of Iron Overload: Pilot Study |
| NCT01319851 | Not specified | TERMINATED | Alefacept and Allogeneic Hematopoietic Stem Cell Transplantation |
| NCT01758042 | Not specified | COMPLETED | Bone Marrow and Kidney Transplant for Patients With Chronic Kidney Disease and Blood Disorders |
| NCT01913548 | Not specified | COMPLETED | Multi-Center Study of Iron Overload: Survey Study (MCSIO) |
| NCT02179359 | Not specified | TERMINATED | Hematopoietic Stem Cell Transplant for High Risk Hemoglobinopathies |
| NCT02720679 | Not specified | RECRUITING | Investigation of the Genetics of Hematologic Diseases |
| NCT03050268 | Not specified | RECRUITING | Familial Investigations of Childhood Cancer Predisposition |
| NCT07186179 | Not specified | RECRUITING | Mobilization of CD34+ Peripheral Blood Stem Cells in Patients With Diamond Blackfan Anemia Syndrome (DBAS) |
Related Atlas pages
No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.