SCO2
gene geneOn this page
Also known as SCO1L
Summary
SCO2 (synthesis of cytochrome C oxidase 2, HGNC:10604) is a protein-coding gene on chromosome 22q13.33, encoding Cytochrome c oxidase assembly factor SCO2 (O43819). Copper metallochaperone essential for the synthesis and maturation of cytochrome c oxidase subunit II (MT-CO2/COX2); together with SCO1, facilitates the incorporation of copper into the Cu(A) site of MT-CO2/COX2.
Cytochrome c oxidase (COX) catalyzes the transfer of electrons from cytochrome c to molecular oxygen, which helps to maintain the proton gradient across the inner mitochondrial membrane that is necessary for aerobic ATP production. Human COX is a multimeric protein complex that requires several assembly factors; this gene encodes one of the COX assembly factors. The encoded protein is a metallochaperone that is involved in the biogenesis of cytochrome c oxidase subunit II. Mutations in this gene are associated with fatal infantile encephalocardiomyopathy and myopia 6.
Source: NCBI Gene 9997 — RefSeq curated summary.
At a glance
- Gene–disease (curated): Leigh syndrome (Definitive, ClinGen) — +5 more curated relationships
- GWAS associations: 9
- Clinical variants (ClinVar): 87 total — 5 pathogenic, 5 likely-pathogenic
- GTEx eGene: eQTL in 22 tissues, sQTL in 35 (q < 0.05)
- Phenotypes (HPO): 170
- Constraint (gnomAD): pLI 0.01 (LoF-tolerant), LOEUF 1.76 (unconstrained)
- MANE Select transcript:
NM_005138
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:10604 |
| Approved symbol | SCO2 |
| Name | synthesis of cytochrome C oxidase 2 |
| Location | 22q13.33 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | SCO1L |
| Ensembl gene | ENSG00000284194 |
| Ensembl biotype | protein_coding |
| OMIM | 604272 |
| Entrez | 9997 |
Gene structure
Transcript identifiers
Ensembl transcripts: 15 — 15 protein_coding
MANE Select: ENST00000395693
Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 1, TSL 2: 4
ENST00000395693, ENST00000252785, ENST00000535425, ENST00000543927, ENST00000638598, ENST00000862162, ENST00000862163, ENST00000862164, ENST00000862165, ENST00000862166, ENST00000862167, ENST00000862168, ENST00000862169, ENST00000928020, ENST00001133054
RefSeq mRNA: 4 — MANE Select: NM_005138
NM_001169109, NM_001169110, NM_001169111, NM_005138
CCDS: CCDS14095
Canonical transcript exons
ENST00000395693 — 2 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001522509 | 50525472 | 50525598 |
| ENSE00003902118 | 50523568 | 50524424 |
Expression profiles
Bgee: expression breadth ubiquitous, 260 present calls, max score 98.58.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 12.8442 / max 59.4095, expressed in 1799 samples.
Highest expression (Bgee): uterine tube, granulocyte, mucosa of transverse colon, monocyte, mononuclear cell.
Genetic regulation across tissues (GTEx eQTL / sQTL)
SCO2 is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 22 tissues and its splicing (sQTL) in 35 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.
showing 20 of 57 significant tissue × QTL associations:
| Tissue | QTL | q-value | Slope | Lead variant |
|---|---|---|---|---|
| Whole Blood | sqtl | 4.9e-57 | -0.78 | 22:50525724:T:C |
| Cells Cultured fibroblasts | sqtl | 2.0e-44 | +1.19 | 22:50526017:A:T |
| Testis | sqtl | 4.9e-39 | +1.99 | 22:50531639:C:T |
| Cells EBV-transformed lymphocytes | sqtl | 2.1e-37 | +1.25 | 22:50526017:A:T |
| Whole Blood | eqtl | 1.6e-35 | -0.47 | 22:50525724:T:C |
| Lung | sqtl | 2.4e-25 | -0.72 | 22:50525724:T:C |
| Colon Transverse | sqtl | 2.7e-23 | +0.96 | 22:50526017:A:T |
| Adipose Visceral Omentum | sqtl | 3.6e-20 | +0.77 | 22:50525724:T:C |
| Esophagus Mucosa | sqtl | 2.3e-18 | -0.82 | 22:50526017:A:T |
| Adipose Subcutaneous | sqtl | 4.8e-17 | +0.67 | 22:50525724:T:C |
| Skin Sun Exposed Lower leg | sqtl | 9.1e-17 | +0.65 | 22:50526017:A:T |
| Skin Not Sun Exposed Suprapubic | sqtl | 1.4e-15 | +0.72 | 22:50526017:A:T |
| Colon Sigmoid | sqtl | 3.7e-14 | +0.82 | 22:50526017:A:T |
| Lung | eqtl | 4.2e-14 | -0.36 | 22:50525724:T:C |
| Esophagus Muscularis | sqtl | 2.9e-12 | +0.69 | 22:50526017:A:T |
| Stomach | sqtl | 5.4e-12 | +0.88 | 22:50526017:A:T |
| Artery Aorta | sqtl | 9.8e-11 | +0.77 | 22:50526017:A:T |
| Spleen | sqtl | 4.1e-10 | +0.85 | 22:50526017:A:T |
| Esophagus Gastroesophageal Junction | sqtl | 5.3e-09 | +0.78 | 22:50526017:A:T |
| Nerve Tibial | sqtl | 1.3e-08 | -0.42 | 22:50525724:T:C |
FANTOM5 promoters
4 alternative TSS:
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 194754 | 8.3682 | 1719 |
| 194755 | 2.2973 | 1178 |
| 194756 | 2.0937 | 1201 |
| 194757 | 0.0851 | 17 |
Top tissues by expression
showing 100 of 289 tissues by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| right uterine tube | UBERON:0001302 | 98.58 | gold quality |
| granulocyte | CL:0000094 | 97.35 | gold quality |
| mucosa of transverse colon | UBERON:0004991 | 96.39 | gold quality |
| monocyte | CL:0000576 | 95.53 | gold quality |
| mononuclear cell | CL:0000842 | 95.39 | gold quality |
| leukocyte | CL:0000738 | 94.87 | gold quality |
| gingival epithelium | UBERON:0001949 | 94.00 | gold quality |
| gingiva | UBERON:0001828 | 92.32 | gold quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 92.09 | gold quality |
| cervix squamous epithelium | UBERON:0006922 | 92.09 | gold quality |
| palpebral conjunctiva | UBERON:0001812 | 91.46 | gold quality |
| squamous epithelium | UBERON:0006914 | 90.83 | gold quality |
| periodontal ligament | UBERON:0008266 | 90.78 | gold quality |
| right lobe of liver | UBERON:0001114 | 90.01 | gold quality |
| esophagus squamous epithelium | UBERON:0006920 | 89.95 | gold quality |
| epithelium of bronchus | UBERON:0002031 | 89.88 | gold quality |
| bronchial epithelial cell | CL:0002328 | 89.84 | gold quality |
| blood | UBERON:0000178 | 89.68 | gold quality |
| esophagus mucosa | UBERON:0002469 | 89.57 | gold quality |
| bronchus | UBERON:0002185 | 89.32 | gold quality |
| right lung | UBERON:0002167 | 89.13 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 89.04 | gold quality |
| epithelium of esophagus | UBERON:0001976 | 88.86 | gold quality |
| transverse colon | UBERON:0001157 | 88.66 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 88.61 | gold quality |
| apex of heart | UBERON:0002098 | 88.27 | gold quality |
| endothelial cell | CL:0000115 | 88.21 | gold quality |
| parietal pleura | UBERON:0002400 | 87.94 | gold quality |
| upper lobe of left lung | UBERON:0008952 | 87.64 | gold quality |
| omental fat pad | UBERON:0010414 | 87.24 | gold quality |
| peritoneum | UBERON:0002358 | 87.19 | gold quality |
| adipose tissue of abdominal region | UBERON:0007808 | 87.04 | gold quality |
| pleura | UBERON:0000977 | 87.03 | gold quality |
| nasal cavity mucosa | UBERON:0001826 | 86.63 | gold quality |
| right adrenal gland | UBERON:0001233 | 86.61 | gold quality |
| upper lobe of lung | UBERON:0008948 | 86.60 | gold quality |
| duodenum | UBERON:0002114 | 86.58 | gold quality |
| oral cavity | UBERON:0000167 | 86.37 | gold quality |
| left adrenal gland | UBERON:0001234 | 86.31 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 86.30 | gold quality |
| spleen | UBERON:0002106 | 86.24 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 86.10 | gold quality |
| left uterine tube | UBERON:0001303 | 86.07 | gold quality |
| visceral pleura | UBERON:0002401 | 85.85 | gold quality |
| colonic mucosa | UBERON:0000317 | 85.47 | gold quality |
| heart left ventricle | UBERON:0002084 | 85.39 | gold quality |
| esophagus | UBERON:0001043 | 85.27 | gold quality |
| adrenal cortex | UBERON:0001235 | 85.02 | gold quality |
| cardiac ventricle | UBERON:0002082 | 84.99 | gold quality |
| mammalian vulva | UBERON:0000997 | 84.80 | gold quality |
| mucosa of sigmoid colon | UBERON:0004993 | 84.78 | gold quality |
| small intestine Peyer’s patch | UBERON:0003454 | 84.56 | gold quality |
| colon | UBERON:0001155 | 84.47 | gold quality |
| large intestine | UBERON:0000059 | 84.39 | gold quality |
| parotid gland | UBERON:0001831 | 84.37 | gold quality |
| nasal cavity epithelium | UBERON:0005384 | 84.31 | gold quality |
| nephron tubule | UBERON:0001231 | 84.28 | gold quality |
| mouth mucosa | UBERON:0003729 | 84.25 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 84.16 | gold quality |
| stromal cell of endometrium | CL:0002255 | 84.14 | gold quality |
| jejunal mucosa | UBERON:0000399 | 84.02 | gold quality |
| decidua | UBERON:0002450 | 83.79 | gold quality |
| adipose tissue | UBERON:0001013 | 83.62 | gold quality |
| skin of abdomen | UBERON:0001416 | 83.59 | gold quality |
| small intestine | UBERON:0002108 | 83.55 | gold quality |
| minor salivary gland | UBERON:0001830 | 83.52 | gold quality |
| intestine | UBERON:0000160 | 83.37 | gold quality |
| subcutaneous adipose tissue | UBERON:0002190 | 83.28 | gold quality |
| pancreatic ductal cell | CL:0002079 | 83.22 | gold quality |
| saliva-secreting gland | UBERON:0001044 | 83.19 | gold quality |
| body of stomach | UBERON:0001161 | 83.10 | gold quality |
| gastrocnemius | UBERON:0001388 | 83.04 | gold quality |
| liver | UBERON:0002107 | 82.99 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 82.97 | gold quality |
| right atrium auricular region | UBERON:0006631 | 82.94 | gold quality |
| left coronary artery | UBERON:0001626 | 82.80 | gold quality |
| metanephros cortex | UBERON:0010533 | 82.73 | gold quality |
| adrenal gland | UBERON:0002369 | 82.56 | gold quality |
| skin of leg | UBERON:0001511 | 82.50 | gold quality |
| connective tissue | UBERON:0002384 | 82.43 | gold quality |
| cervix epithelium | UBERON:0004801 | 82.43 | gold quality |
| coronary artery | UBERON:0001621 | 82.38 | gold quality |
| right coronary artery | UBERON:0001625 | 82.32 | gold quality |
| penis | UBERON:0000989 | 82.23 | gold quality |
| zone of skin | UBERON:0000014 | 82.16 | gold quality |
| prefrontal cortex | UBERON:0000451 | 82.10 | gold quality |
| heart | UBERON:0000948 | 81.90 | gold quality |
| sigmoid colon | UBERON:0001159 | 81.89 | gold quality |
| amniotic fluid | UBERON:0000173 | 81.80 | gold quality |
| epithelium of nasopharynx | UBERON:0001951 | 81.80 | gold quality |
| middle temporal gyrus | UBERON:0002771 | 81.54 | gold quality |
| vermiform appendix | UBERON:0001154 | 81.49 | gold quality |
| thoracic aorta | UBERON:0001515 | 81.44 | gold quality |
| adult mammalian kidney | UBERON:0000082 | 81.43 | gold quality |
| lower esophagus | UBERON:0013473 | 81.42 | gold quality |
| upper leg skin | UBERON:0004262 | 81.37 | gold quality |
| lower esophagus muscularis layer | UBERON:0035833 | 81.36 | gold quality |
| ascending aorta | UBERON:0001496 | 81.32 | gold quality |
| muscle layer of sigmoid colon | UBERON:0035805 | 81.26 | gold quality |
| endocervix | UBERON:0000458 | 81.20 | gold quality |
Single-cell (SCXA)
Detected in 4 experiment(s), a significant marker in 0.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-MTAB-6379 | no | 351.97 |
| E-MTAB-7052 | no | 201.13 |
| E-MTAB-4850 | no | 179.46 |
| E-ANND-3 | no | 1.55 |
HPA expression
RNA tissue specificity: Low tissue specificity
showing 60 of 79 HPA tissues / cells by nTPM:
| Tissue / cell | Axis | nTPM | Protein (IHC) |
|---|---|---|---|
| Bone marrow | tissue | 34.3 | low |
| Duodenum | tissue | 24.1 | high |
| Colon | tissue | 20.6 | medium |
| Salivary gland | tissue | 20.0 | medium |
| Frontal cortex | tissue | 19.0 | |
| Small intestine | tissue | 18.5 | high |
| Choroid plexus | tissue | 17.6 | |
| Liver | tissue | 17.2 | not detected |
| Adipose tissue | tissue | 15.7 | not detected |
| Vagina | tissue | 15.0 | medium |
| Fallopian tube | tissue | 14.9 | medium |
| Lung | tissue | 13.5 | low |
| Appendix | tissue | 12.6 | medium |
| Urinary bladder | tissue | 12.1 | high |
| Caudate putamen | tissue | 12.0 | |
| Smooth muscle | tissue | 11.9 | not detected |
| Esophagus | tissue | 11.6 | medium |
| Pancreas | tissue | 10.8 | medium |
| Spleen | tissue | 10.8 | medium |
| Thymus | tissue | 10.5 | |
| Skin 1 | tissue | 10.4 | medium |
| Locus coeruleus | tissue | 10.0 | |
| Rectum | tissue | 9.9 | medium |
| Pituitary gland | tissue | 9.8 | |
| Heart muscle | tissue | 9.7 | medium |
| Adrenal gland | tissue | 9.7 | high |
| Stomach 1 | tissue | 9.6 | medium |
| Skeletal muscle | tissue | 9.6 | not detected |
| Tonsil | tissue | 9.6 | medium |
| Tongue | tissue | 9.4 | |
| Lymph node | tissue | 8.5 | low |
| Placenta | tissue | 7.7 | medium |
| Kidney | tissue | 7.6 | medium |
| Breast | tissue | 7.4 | low |
| Hippocampus | tissue | 7.3 | low |
| Cerebellum | tissue | 7.2 | medium |
| Gallbladder | tissue | 7.2 | medium |
| Parathyroid gland | tissue | 6.7 | not detected |
| Nucleus accumbens | tissue | 6.5 | |
| Cervix | tissue | 6.4 | medium |
| Seminal vesicle | tissue | 6.3 | medium |
| Cerebral cortex | tissue | 5.5 | medium |
| Postcentral gyrus | tissue | 5.5 | |
| Somatosensory cortex | tissue | 5.5 | |
| Corpus callosum | tissue | 5.4 | |
| Olfactory bulb | tissue | 5.2 | |
| Occipital cortex | tissue | 5.2 | |
| Motor cortex | tissue | 5.1 | |
| Basal ganglia | tissue | 5.0 | low |
| Thalamus | tissue | 5.0 | |
| Superior colliculi | tissue | 5.0 | |
| Hippocampal formation | tissue | 5.0 | |
| Entorhinal cortex | tissue | 5.0 | |
| Retrosplenial and cingulate cortex | tissue | 5.0 | |
| Retrosplenial cortex | tissue | 5.0 | |
| Putamen | tissue | 4.8 | |
| Ventral forebrain | tissue | 4.8 | |
| Periaqueductal gray | tissue | 4.8 | |
| Temporal cortex | tissue | 4.8 | |
| Insular cortex | tissue | 4.8 |
Brain sub-regions (HPA Brain Atlas): detected in 191; highest nTPM — Periaquaductal grey, lateral (19.7), Nucleus tractus solitarii (19.3), Anterior thalamic nucleus, ventral (16.3), Dorsolateral tegmental area (16.3), Blood vessel (15.9).
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): TP53
Functional genomics
gnomAD constraint: pLI 0.0118, LOEUF 1.76, missense Z -1.44 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD
Regional missense constraint (gnomAD RMC): no regional variation along ENST00000395693 — one region, missense o/e 1.23.
Literature-anchored findings (GeneRIF, showing 39)
- Mutations can cause fatal cytochrome c oxidase deficiency. Affected myoblasts can be rescued in vitro by transduction of the normal SCO2 gene or by copper administration. (PMID:11751685)
- Copper supplementation restores cytochrome c oxidase activity in cultured cells from patients with SCO2 mutations. (PMID:11931660)
- One novel SCO2 mutation has been identified in a patient with hypertrophic cardiomyopathy. (PMID:12538779)
- SCO2 mutation is associated spinal muscular atrophy type I phenotype (PMID:14994243)
- SCO2 transfers copper to the CuA site at an early stage of COX assembly in mitochondria. (PMID:15229189)
- The consequences of SCO2 and SURF1 mutations suggest the existence of tissue-specific functional differences of these proteins that may serve different tissue-specific requirements for the regulation of COX biogenesis. (PMID:16083427)
- data suggest that both Cu(I) and Cu(II) binding are critical for normal Sco function. (PMID:16091356)
- findings show that p53 modulates the balance between the utilization of respiratory and glycolytic pathways; identifed Synthesis of Cytochrome c Oxidase 2 (SCO2) as the downstream mediator of this effect (PMID:16728594)
- These results suggest a mitochondrial pathway for the regulation of cellular copper content that involves signaling through SCO1 and SCO2, perhaps by their thiol redox or metal-binding state. (PMID:17189203)
- structural and metal binding features of human Cu(I)Sco2 are similar to the Sco1 homolog, although the dynamic properties and the conformational disorder are quite different when apo forms and the copper(I)-loaded forms of the two proteins are compared (PMID:17850752)
- report extends knowledge of the pathology of COX deficiency caused by mutations in the SCO2 gene (PMID:18254779)
- Spinal muscular atrophy has been associated with mtDNA depletion or with mutations in the cytochrome-c oxidase assembly gene (SCO2; OMIM 604377). (PMID:18332255)
- Mutations in the SCO2 gene are a cause of prenatal-onset hypertrophic cardiomyopathy. (PMID:18924171)
- SCO2 acts upstream of SCO1, and that it is indispensable for CO II synthesis. (PMID:19336478)
- observations confirm that mutations in the SCO2 gene are frequently associated with the neurogenic pattern of skeletal muscle involvement accompanied by mitochondrial abnormalities (PMID:19353431)
- Mutations of SCO2 gene should be considered as a possible cause of neurogenic skeletal muscle features (including SMA-like) in infants with encephalomyopathy even in the absence of heart involvement and COX deficit. (PMID:19879173)
- recombinant fusion L-Sco2 protein was successfully transduced into the mitochondria of primary fibroblasts derived from SCO2/COX deficient patient and facilitated recovery of COX activity (PMID:20193760)
- Results describe the tissue distribution of SCO1 and SCO2 in mouse and human tissues. (PMID:20864674)
- These results suggest that p53 can modulate the metabolic pathways via the proteins SCO2 and TIGAR in human breast cancer. (PMID:21820150)
- Analysis of the mtDNA revealed that COX deficiency is caused by high levels of mtDNA deletions which accumulate with age in alzheimer disease. (PMID:21925769)
- wild-type p53 gene silencing reduced the expression of synthesis of cytochrome c oxidase 2 (SCO2), an effector necessary for respiratory chain function (PMID:22120717)
- Exogenous addition of the SCO2 gene to hypoxic cancer cells and hypoxic tumors induces apoptosis. (PMID:23319048)
- Autosomal recessive mutations in SCO2 are known to be associated with COX deficiency recognized as fatal infantile cardio-encephalomyopathy (PMID:23364397)
- oroxylin A could increase protein and mRNA expression of TP53-induced glycolysis and apoptosis regulator (TIGAR) and synthesis of cytochrome c oxidase 2 (SCO2), which are the key metabolic modulators regulated by p53. (PMID:23612020)
- Mutations in SCO2 are associated with autosomal-dominant high-grade myopia. (PMID:23643385)
- alpha-particle-induced bystander effect is regulated by p53 and its downstream SCO2 in the irradiated hepatoma cells (PMID:23786650)
- COX20 cooperates with SCO1 and SCO2 to mature COX2 and promote the assembly of cytochrome c oxidase. (PMID:24403053)
- mutation in LRPAP1 is associated with high myopia. Further studies are expected to evaluate the pathogenicity of the variants in CTSH, LEPREL1, ZNF644, SLC39A5, and SCO2. (PMID:25525168)
- Letter/Case Report: SCO2 mutations resulting in Leigh disease revealed at autopsy. (PMID:25720770)
- Cooperation between COA6 and SCO2 in COX2 maturation during cytochrome c oxidase assembly links two mitochondrial cardiomyopathies. (PMID:25959673)
- oncoprotein HBXIP enhances glucose metabolism reprogramming through suppressing SCO2 and PDHA1 in breast cancer (PMID:26309161)
- Sco1 is a metallochaperone that selectively transfers Cu(I) ions based on loop recognition, whereas Sco2 is a copper-dependent thiol reductase of the cysteine ligands in the oxidase. (PMID:26351686)
- oxidative stress-induced glycolysis-to-OXPHOS switch is mediated by synthesis of cytochrome c oxidase 2 (SCO2). These findings demonstrate p53-mediated OXPHOS function as a compensatory alteration in Fanconi anemia (FA)hematopoietic stem cells to ensure a functional but mildly impaired energy metabolism and suggest a cautious approach to manipulating p53 signaling in FA. (PMID:26676373)
- Geranylgeranoic acid increased the SCO2 gene expression, which might enhance aerobic respiration. (PMID:26700591)
- We identified one novel possibility of an extreme myopia-causing mutation in SCO2. No other disease-causing mutation was found in 101 extremely myopic Japanese patients, suggesting that SCO2 plays a limited role in Japanese extreme myopia. (PMID:27052445)
- In gastric cancer, the expression of SCO2 and COX were not shown to be associated with the regulatory role of p53, unlike TIGAR expression. Nevertheless, a significantly high recurrence rate was found in a patient group with high COX expression (PMID:27499152)
- High expression of synthesis of cytochrome c oxidase 2 and TP53-induced glycolysis and apoptosis regulator can predict poor prognosis in human lung adenocarcinoma (PMID:29634976)
- Systemic Mitochondrial Oxidative Phosphorylation Protein Levels Correlate with Neuroimaging Measures in Chronically HIV-Infected Individuals. (PMID:31617381)
- TCF19 and p53 regulate transcription of TIGAR and SCO2 in HCC for mitochondrial energy metabolism and stress adaptation. (PMID:34369624)
Cross-species orthologs
2 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | sco2 | ENSDARG00000045555 |
| mus_musculus | Sco2 | ENSMUSG00000091780 |
Paralogs (1): SCO1 (ENSG00000133028)
Mouse-model phenotypes
Observed phenotypes of the mouse ortholog (MGI:3818630) from MGI (Alliance of Genome Resources) — knockout/mutant phenotypes, ranked by annotation count. 8 distinct phenotype terms.
| Mouse phenotype (MP) | Records |
|---|---|
| muscle weakness | 1 |
| abnormal locomotor behavior | 1 |
| abnormal embryonic tissue morphology | 1 |
| increased liver copper level | 1 |
| abnormal copper level | 1 |
| abnormal mitochondrial ATP synthesis coupled electron transport | 1 |
| embryonic lethality between implantation and placentation, complete penetrance | 1 |
| impaired exercise endurance | 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 |
|---|---|---|---|
| Rickettsia conorii str. Malish 7 | Q92H76 | 96.6% | Diamond |
| Rickettsia felis Marseille-URRWFXCal2 | Q4UKW2 | 96.1% | Diamond |
| Rickettsia typhi str. Wilmington | Q68WF1 | 87.2% | Diamond |
| Rickettsia prowazekii str. Madrid E | Q9ZCW7 | 87.2% | Diamond |
| Bos taurus | A6H784 | 84.2% | Diamond |
| Rickettsia bellii RML369-C | Q1RIN4 | 81.4% | Diamond |
| Saccharomyces cerevisiae S288C | P23833 | 59.3% | Diamond |
| Schizosaccharomyces pombe 972h- | O42899 | 51.1% | Diamond |
| Arabidopsis thaliana | Q8VYP0 | 48.5% | Diamond |
| Rhodobacter capsulatus SB 1003 | Q52720 | 42.4% | Diamond |
| Stutzerimonas stutzeri | P47206 | 38.2% | 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 |
|---|---|---|
| KLHDC7B-DT | ncRNA | 105373098 |
| KLHDC7B | protein-coding | 113730 |
| TYMP | protein-coding | 1890 |
| CIMAP1B | protein-coding | 440836 |
| SYCE3 | protein-coding | 644186 |
| LINC03232 | ncRNA | 102724608 |
| CPT1B | protein-coding | 1375 |
| CHKB-CPT1B | ncRNA | 386593 |
| NCAPH2 | protein-coding | 29781 |
| MIOX | protein-coding | 55586 |
| LMF2 | protein-coding | 91289 |
| ADM2 | protein-coding | 79924 |
| SBF1 | protein-coding | 6305 |
| PPP6R2 | protein-coding | 9701 |
Protein
Protein identifiers
Cytochrome c oxidase assembly factor SCO2 — O43819 (reviewed: O43819)
All UniProt accessions (2): A0A1W2PQK0, O43819
UniProt curated annotations — full annotation on UniProt →
Function. Copper metallochaperone essential for the synthesis and maturation of cytochrome c oxidase subunit II (MT-CO2/COX2); together with SCO1, facilitates the incorporation of copper into the Cu(A) site of MT-CO2/COX2. Could also act as a thiol-disulfide oxidoreductase to regulate the redox state of the cysteines in SCO1 during maturation of MT-CO2/COX2.
Subunit / interactions. Homodimer. Interacts with COA6. Found in a complex with TMEM177, COX20, COA6, MT-CO2/COX2, COX18 and SCO1. Interacts with TMEM177 in a COX20-dependent manner. Interacts with COX20 in a MT-CO2/COX2- and COX18-dependent manner. Interacts with COX16.
Subcellular location. Mitochondrion inner membrane.
Tissue specificity. Ubiquitous.
Disease relevance. Mitochondrial complex IV deficiency, nuclear type 2 (MC4DN2) [MIM:604377] An autosomal recessive, severe mitochondrial disorder characterized by hypotonia, global developmental delay, hypertrophic cardiomyopathy, lactic acidosis, gliosis, and neuronal loss in basal ganglia, brainstem and spinal cord. Serum lactate is increased, and laboratory studies show decreased mitochondrial complex IV protein and activity levels in various tissues, including heart and skeletal muscle. Most patients die in infancy of cardiorespiratory failure. The disease is caused by variants affecting the gene represented in this entry. Myopia 6 (MYP6) [MIM:608908] A refractive error of the eye, in which parallel rays from a distant object come to focus in front of the retina, vision being better for near objects than for far. The disease is caused by variants affecting the gene represented in this entry.
Similarity. Belongs to the SCO1/2 family.
RefSeq proteins (4): NP_001162580, NP_001162581, NP_001162582, NP_005129* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR003782 | SCO1/SenC | Family |
| IPR013766 | Thioredoxin_domain | Domain |
| IPR017276 | Synth_of_cyt-c-oxidase_Sco1/2 | Family |
| IPR036249 | Thioredoxin-like_sf | Homologous_superfamily |
Pfam: PF02630
UniProt features (34 total): sequence variant 11, strand 8, helix 4, binding site 3, topological domain 2, transit peptide 1, chain 1, turn 1, transmembrane region 1, domain 1, disulfide bond 1
Structure
Experimental structures (PDB)
1 structures by resolution:
| PDB | Title | Method | Resolution (Å) |
|---|---|---|---|
| 2RLI | Solution structure of Cu(I) human Sco2 | SOLUTION NMR |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-O43819-F1 | 84.14 | 0.64 |
Human Protein Atlas
Protein class: Predicted membrane proteins, Disease related genes, Human disease related genes, Congenital disorders of metabolism, Eye disease
Protein evidence: Evidence at protein level
Subcellular location (HPA, imaging): mitochondria
Antibody reliability (HPA): IH uncertain · IF supported
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Ligand- & substrate-binding residues (3)
| Position | Role |
|---|---|
| 133 | Cu cation |
| 137 | Cu cation |
| 224 | Cu cation |
Disulfide bonds (1)
| Type | Positions |
|---|---|
| Redox-active | 133–137 |
Function
Pathways and Gene Ontology
Reactome pathways
2 curated (TAS) of 9; 0 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).
9 pathways:
| ID | Pathway | Evidence |
|---|---|---|
| R-HSA-9864848 | Complex IV assembly | curated |
| R-HSA-5628897 | TP53 Regulates Metabolic Genes | curated |
| R-HSA-1428517 | Aerobic respiration and respiratory electron transport | — |
| R-HSA-74160 | Gene expression (Transcription) | — |
| R-HSA-212436 | Generic Transcription Pathway | — |
| R-HSA-1430728 | Metabolism | — |
| R-HSA-73857 | RNA Polymerase II Transcription | — |
| R-HSA-611105 | Respiratory electron transport | — |
| R-HSA-3700989 | Transcriptional Regulation by TP53 | — |
MSigDB gene sets: 424 (showing top):
GOBP_EMBRYO_DEVELOPMENT_ENDING_IN_BIRTH_OR_EGG_HATCHING, MCLACHLAN_DENTAL_CARIES_UP, GOBP_RESPIRATORY_CHAIN_COMPLEX_IV_ASSEMBLY, MODULE_45, GOBP_MITOCHONDRIAL_RESPIRATORY_CHAIN_COMPLEX_ASSEMBLY, DACOSTA_UV_RESPONSE_VIA_ERCC3_UP, GOBP_CYTOCHROME_COMPLEX_ASSEMBLY, MODULE_66, GOBP_GENERATION_OF_PRECURSOR_METABOLITES_AND_ENERGY, RICKMAN_METASTASIS_DN, ONKEN_UVEAL_MELANOMA_UP, GOBP_IN_UTERO_EMBRYONIC_DEVELOPMENT, GOBP_ELECTRON_TRANSPORT_CHAIN, GOCC_MITOCHONDRIAL_ENVELOPE, MODULE_88
GO Biological Process (5): eye development (GO:0001654), intracellular copper ion homeostasis (GO:0006878), mitochondrial respiratory chain complex IV assembly (GO:0033617), respiratory chain complex IV assembly (GO:0008535), cytochrome complex assembly (GO:0017004)
GO Molecular Function (5): copper ion binding (GO:0005507), protein-disulfide reductase activity (GO:0015035), copper chaperone activity (GO:0016531), protein binding (GO:0005515), metal ion binding (GO:0046872)
GO Cellular Component (3): mitochondrion (GO:0005739), mitochondrial inner membrane (GO:0005743), myofibril (GO:0030016)
Reactome top-level categories
7 top-level categories:
| Category | Pathways |
|---|---|
| Transcriptional Regulation by TP53 | 1 |
| Respiratory electron transport | 1 |
| Metabolism | 1 |
| RNA Polymerase II Transcription | 1 |
| Generic Transcription Pathway | 1 |
| Aerobic respiration and respiratory electron transport | 1 |
| Gene expression (Transcription) | 1 |
GO top-level categories
21 GO namespaces:
| Category | Terms |
|---|---|
| sensory organ development | 1 |
| visual system development | 1 |
| intracellular monoatomic cation homeostasis | 1 |
| copper ion homeostasis | 1 |
| mitochondrion | 1 |
| respiratory chain complex IV assembly | 1 |
| mitochondrial respiratory chain complex assembly | 1 |
| cytochrome complex assembly | 1 |
| protein-containing complex assembly | 1 |
| transition metal ion binding | 1 |
| disulfide oxidoreductase activity | 1 |
| catalytic activity, acting on a protein | 1 |
| copper ion binding | 1 |
| metallochaperone activity | 1 |
| binding | 1 |
| cation binding | 1 |
| cytoplasm | 1 |
| intracellular membrane-bounded organelle | 1 |
| organelle inner membrane | 1 |
| mitochondrial membrane | 1 |
| contractile muscle fiber | 1 |
Experimentally-supported GO annotations
GO terms backed by direct experimental evidence (ECO experimental codes) — 6 of 13 annotations. The rest are phylogenetic / computational / electronic (IEA).
6 experimentally-supported GO terms:
| GO term | NS | Evidence |
|---|---|---|
| eye development | BP | mutant phenotype |
| mitochondrial respiratory chain complex IV assembly | BP | mutant phenotype |
| mitochondrial inner membrane | CC | direct assay |
| mitochondrion | CC | direct assay |
| myofibril | CC | direct assay |
| protein-disulfide reductase activity | MF | direct assay |
Protein interactions and networks
STRING
showing 15 of 1,600 interactions by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| SCO2 | SURF1 | Q15526 | 933 |
| SCO2 | COX17 | Q14061 | 930 |
| SCO2 | COX10 | Q12887 | 919 |
| SCO2 | COX15 | Q7KZN9 | 910 |
| SCO2 | MT-CO2 | P00403 | 833 |
| SCO2 | ATOX1 | O00244 | 806 |
| SCO2 | COX11 | Q9Y6N1 | 789 |
| SCO2 | TIGAR | Q9NQ88 | 770 |
| SCO2 | TACO1 | Q9BSH4 | 742 |
| SCO2 | MT-CO1 | P00395 | 736 |
| SCO2 | COX4I1 | P13073 | 733 |
| SCO2 | COA6 | Q5JTJ3 | 732 |
| SCO2 | MT-CO3 | P00414 | 706 |
| SCO2 | COX6B1 | P14854 | 706 |
| SCO2 | TP53 | P04637 | 680 |
IntAct
Human interaction partners of SCO2 in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).
6 partners by confidence:
| Partner | Interaction type | MIscore | Records |
|---|---|---|---|
| CIDEB | physical association | 0.560 | 3 |
| COX17 | direct interaction | 0.440 | 1 |
| EPHA5 | association | 0.350 | 1 |
| NDUFB8 | association | 0.350 | 1 |
| STK33 | association | 0.350 | 1 |
| MAP3K3 | physical association | 0.000 | 1 |
BioGRID (152 interactions; top human partners by supporting records): AIFM1 (Proximity Label-MS; 3 records), ANKRD11 (Cross-Linking-MS (XL-MS); 2 records), ARMC6 (Affinity Capture-MS; 2 records), CIDEB (Two-hybrid; 2 records), CUL3 (Affinity Capture-MS; 2 records), EYA4 (Affinity Capture-MS; 2 records), MET (Affinity Capture-MS; 2 records), MTMR14 (Affinity Capture-MS; 2 records), SCO1 (Proximity Label-MS; 2 records), APP (Reconstituted Complex), ATG14 (Affinity Capture-MS), ATP6V1E1 (Co-fractionation), AURKA (Affinity Capture-MS), BAG2 (Affinity Capture-MS), BIRC6 (Affinity Capture-MS)
SIGNOR signaling
1 signaling interactions:
| A | Effect | B | Mechanism |
|---|---|---|---|
| TP53 | “up-regulates quantity by expression” | SCO2 | “transcriptional regulation” |
Disease & clinical
Genetic variants
Variant evidence for SCO2: 87 ClinVar records (10 pathogenic / likely pathogenic); 9 GWAS associations. Per-variant detail is on Sugi Variant.
ClinVar
87 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 5 |
| Likely pathogenic | 5 |
| Uncertain significance | 30 |
| Likely benign | 30 |
| Benign | 3 |
Top pathogenic / likely-pathogenic (10)
Showing all 10 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 |
|---|---|---|---|---|
| 2735939 | NM_005138.3(SCO2):c.116_131dup (p.Glu45fs) | Pathogenic | criteria provided, single submitter | 1 |
| 2780143 | NM_005138.3(SCO2):c.172C>T (p.Arg58Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 1325042 | NM_005138.3(SCO2):c.224G>A (p.Trp75Ter) | Likely pathogenic | criteria provided, single submitter | 1 |
| 3240429 | NM_005138.3(SCO2):c.563del (p.Leu188fs) | Likely pathogenic | criteria provided, single submitter | 1 |
| 3588119 | NM_005138.3(SCO2):c.738_750dup (p.Ser251delinsGlyTer) | Likely pathogenic | criteria provided, single submitter | 1 |
| 3588121 | NM_005138.3(SCO2):c.210_229del (p.Leu71fs) | Likely pathogenic | criteria provided, single submitter | 1 |
| 3588122 | NM_001953.5(TYMP):c.1447T>C (p.Ter483Gln) | Likely pathogenic | criteria provided, single submitter | 1 |
| 831985 | NC_000022.11:g.(?50525760)(50529719_?)del | Pathogenic | criteria provided, single submitter | 1 |
| 5683 | NM_005138.3(SCO2):c.179_188dup (p.Ile63fs) | Pathogenic | no assertion criteria provided | 1 |
| 5684 | NM_005138.3(SCO2):c.398G>A (p.Cys133Tyr) | Pathogenic | no assertion criteria provided | 1 |
Per-variant reference — Sugi Variant
Explore SCO2’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; 19 predictions of 338):
| Position(s) | Effect | Δscore | Sites |
|---|---|---|---|
| 22:50525470–50525471 | donor_loss | 0.9700 | 5 |
| 22:50524425–50524426 | acceptor_loss | 0.9300 | 6 |
| 22:50525015 | donor_gain | 0.9300 | |
| 22:50525281 | donor_gain | 0.9200 | |
| 22:50525470 | donor_loss | 0.9200 | |
| 22:50525448 | donor_gain | 0.8900 | |
| 22:50524433 | acceptor_loss | 0.8700 | |
| 22:50525050 | donor_gain | 0.8600 | |
| 22:50525531 | donor_gain | 0.8400 | |
| 22:50524427 | acceptor_loss | 0.8300 |
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 (TCGA) | unfavorable | 0.000911 |
Disease associations
OMIM: gene MIM:604272 | disease phenotypes: MIM:604377, MIM:608908, MIM:603041
GenCC curated gene-disease
5 curated gene-disease records:
| Disease | Classification | Inheritance | Records |
|---|---|---|---|
| Leigh syndrome | Definitive | Autosomal recessive | |
| cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1 | Definitive | Autosomal recessive | 3 |
| myopia 6 | Strong | Autosomal dominant | 2 |
| Charcot-Marie-Tooth disease | Moderate | Autosomal recessive | |
| autosomal recessive axonal charcot-marie-tooth disease due to copper metabolism defect | Supportive | Autosomal recessive |
ClinGen Gene-Disease Validity
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
3 validity classifications:
| Disease | Classification | Inheritance |
|---|---|---|
| Leigh syndrome | Definitive | AR |
| mitochondrial disease | Definitive | AR |
| Charcot-Marie-Tooth disease | Moderate | AR |
Genomics England panels (PanelApp)
Clinical diagnostic gene panels including this gene (17 panels, 14 green/diagnostic-grade). Confidence: green = diagnostic, amber = moderate.
17 panels:
| Panel | Rating |
|---|---|
| DDG2P | green |
| Fetal anomalies | green |
| Hereditary neuropathy or pain disorder | green |
| Hypotonic infant | green |
| Inherited white matter disorders | green |
| Intellectual disability | green |
| Leukodystrophy, childhood onset | green |
| Likely inborn error of metabolism | green |
| Mitochondrial disorder with complex IV deficiency | green |
| Mitochondrial disorders | green |
| Paediatric or syndromic cardiomyopathy | green |
| Possible mitochondrial disorder, nuclear genes | green |
| Undiagnosed metabolic disorders | green |
| White matter disorders and cerebral calcification - childhood onset | green |
| Early onset or syndromic epilepsy | amber |
| Paediatric disorders | amber |
| Unexplained death in infancy and sudden unexplained death in childhood | amber |
Mondo (6): cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1 (MONDO:0011451), myopia 6 (MONDO:0012154), mitochondrial DNA depletion syndrome 1 (MONDO:0011283), Leigh syndrome (MONDO:0009723), Charcot-Marie-Tooth disease (MONDO:0015626), autosomal recessive axonal charcot-marie-tooth disease due to copper metabolism defect (MONDO:0033850)
Orphanet (2): Fatal infantile cytochrome C oxidase deficiency (Orphanet:1561), Mitochondrial neurogastrointestinal encephalomyopathy (Orphanet:298)
HPO phenotypes
showing 60 of 170 phenotypes (HPO-id order):
| HPO | Term |
|---|---|
| HP:0000006 | Autosomal dominant inheritance |
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000093 | Proteinuria |
| HP:0000124 | Renal tubular dysfunction |
| HP:0000218 | High palate |
| HP:0000252 | Microcephaly |
| HP:0000268 | Dolichocephaly |
| HP:0000308 | Microretrognathia |
| HP:0000365 | Hearing impairment |
| HP:0000369 | Low-set ears |
| HP:0000407 | Sensorineural hearing impairment |
| HP:0000431 | Wide nasal bridge |
| HP:0000486 | Strabismus |
| HP:0000505 | Visual impairment |
| HP:0000508 | Ptosis |
| HP:0000577 | Exotropia |
| HP:0000580 | Pigmentary retinopathy |
| HP:0000597 | Ophthalmoparesis |
| HP:0000639 | Nystagmus |
| HP:0000648 | Optic atrophy |
| HP:0000741 | Apathy |
| HP:0000750 | Delayed speech and language development |
| HP:0000952 | Jaundice |
| HP:0001098 | Abnormal fundus morphology |
| HP:0001249 | Intellectual disability |
| HP:0001250 | Seizure |
| HP:0001251 | Ataxia |
| HP:0001252 | Hypotonia |
| HP:0001254 | Lethargy |
| HP:0001256 | Mild intellectual disability |
| HP:0001260 | Dysarthria |
| HP:0001263 | Global developmental delay |
| HP:0001265 | Hyporeflexia |
| HP:0001270 | Motor delay |
| HP:0001272 | Cerebellar atrophy |
| HP:0001273 | Abnormal corpus callosum morphology |
| HP:0001276 | Hypertonia |
| HP:0001284 | Areflexia |
| HP:0001290 | Generalized hypotonia |
| HP:0001298 | Encephalopathy |
| HP:0001310 | Dysmetria |
| HP:0001324 | Muscle weakness |
| HP:0001336 | Myoclonus |
| HP:0001337 | Tremor |
| HP:0001348 | Brisk reflexes |
| HP:0001349 | Facial diplegia |
| HP:0001410 | Decreased liver function |
| HP:0001427 | Mitochondrial inheritance |
| HP:0001508 | Failure to thrive |
| HP:0001511 | Intrauterine growth retardation |
| HP:0001522 | Death in infancy |
| HP:0001605 | Vocal cord paralysis |
| HP:0001635 | Congestive heart failure |
| HP:0001638 | Cardiomyopathy |
| HP:0001639 | Hypertrophic cardiomyopathy |
| HP:0001640 | Cardiomegaly |
| HP:0001662 | Bradycardia |
| HP:0001667 | Right ventricular hypertrophy |
| HP:0001695 | Cardiac arrest |
| HP:0001761 | Pes cavus |
GWAS associations
9 associations:
| Study | Trait | p-value |
|---|---|---|
| GCST012020_238 | Serum metabolite levels | 4e-82 |
| GCST90002404_191 | Red cell distribution width | 3e-33 |
| GCST001765_11 | Red blood cell traits | 5e-23 |
| GCST90002392_730 | Mean corpuscular volume | 4e-12 |
| GCST90002390_77 | Mean corpuscular hemoglobin | 3e-11 |
| GCST004146_29 | Chronic lymphocytic leukemia | 3e-9 |
| GCST004608_195 | Granulocyte percentage of myeloid white cells | 7e-9 |
| GCST001198_16 | Multiple sclerosis | 2e-8 |
| GCST000587_8 | Mean corpuscular hemoglobin | 4e-8 |
EFO canonical traits (from GWAS)
4 canonical traits:
| EFO ID | Trait name |
|---|---|
| EFO:0004509 | hemoglobin measurement |
| EFO:0004527 | mean corpuscular hemoglobin |
| EFO:0007997 | granulocyte percentage of myeloid white cells |
| EFO:0009188 | Red cell distribution width |
MeSH disease descriptors
3 disease descriptors:
| Descriptor | Name | Tree numbers |
|---|---|---|
| D002607 | Charcot-Marie-Tooth Disease | C10.500.300.200; C10.574.500.495.200; C10.668.829.800.300.200; C16.131.666.300.200; C16.320.400.375.200 |
| D007888 | Leigh Disease | C10.228.140.163.100.412; C16.320.565.189.412; C16.320.565.202.810.444; C18.452.132.100.412; C18.452.648.189.412; C18.452.648.202.810.444; C18.452.660.520 |
| C536105 | Myopia 6 *(supp.)* |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (1): CHEMBL6067029 (SINGLE PROTEIN)
PharmGKB: 1 entry (CPIC guideline: no)
PharmGKB variants
1 variants:
| Variant | Genes | Level | Score | #Clin annots | Drugs |
|---|---|---|---|---|---|
| rs11479 | SCO2, TYMP | 3 | 5.50 | 1 | capecitabine;fluorouracil |
Binding affinities (BindingDB)
1 measured of 1 human assays (1 total across all organisms); most potent 1 below. Values come from heterogeneous assays and are not directly comparable.
| Ligand | Measure | Value |
|---|---|---|
| CHEMBL5653589 | KD | 1440 nM |
CTD chemical–gene interactions
32 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | affects binding, increases reaction, decreases expression | 2 |
| Acetaminophen | increases expression, decreases expression | 2 |
| Copper | affects abundance, affects oxidation, decreases abundance | 2 |
| Reactive Oxygen Species | affects cotreatment, increases abundance, increases expression, increases phosphorylation, increases stability (+1 more) | 2 |
| bisphenol F | increases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| cupric chloride | increases activity, increases reaction | 1 |
| (4-amino-1,4-dihydro-3-(2-pyridyl)-5-thioxo-1,2,4-triazole)copper(II) | decreases expression | 1 |
| 2-(1H-indazol-4-yl)-6-(4-methanesulfonylpiperazin-1-ylmethyl)-4-morpholin-4-ylthieno(3,2-d)pyrimidine | decreases expression, increases response to substance | 1 |
| (+)-JQ1 compound | decreases expression | 1 |
| Arsenic Trioxide | decreases expression | 1 |
| Air Pollutants | affects expression, increases abundance | 1 |
| Atrazine | decreases expression | 1 |
| Bezafibrate | increases activity, increases reaction | 1 |
| Ethyl Methanesulfonate | decreases expression | 1 |
| Hydrogen Peroxide | affects cotreatment, decreases expression | 1 |
| Ivermectin | decreases expression | 1 |
| Methyl Methanesulfonate | decreases expression | 1 |
| Nickel | increases expression | 1 |
| Ozone | affects expression, increases abundance | 1 |
| Paraquat | increases expression | 1 |
| Selenium | increases expression | 1 |
| Smoke | decreases expression | 1 |
| Theophylline | affects cotreatment, decreases expression | 1 |
| Tretinoin | decreases expression | 1 |
| Urethane | decreases expression | 1 |
| Valproic Acid | decreases expression, increases methylation | 1 |
| Vincristine | decreases expression | 1 |
| Cyclosporine | decreases expression | 1 |
| Antirheumatic Agents | decreases expression | 1 |
ChEMBL screening assays
1 unique, capped per target: 1 binding
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL5652395 | Binding | Binding affinity to human SCO2 incubated for 45 mins by Kinobead based pull down assay | NVP-BHG712: Effects of Regioisomers on the Affinity and Selectivity toward the EPHrin Family. — *ChemMedChem* |
Clinical trials (associated diseases)
Via MONDO — disease-level, not drug-specific.
showing 60 of 79 trials:
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT04762758 | Phase 3 | UNKNOWN | Phase III Trial Assessing the Efficacy and Safety of PXT3003 in CMT1A Patients |
| NCT01721733 | Phase 2 | COMPLETED | Safety and Efficacy Study of EPI-743 in Children With Leigh Syndrome |
| NCT02352896 | Phase 2 | COMPLETED | Long-Term Safety and Efficacy Evaluation of EPI-743 in Children With Leigh Syndrome |
| NCT03747328 | Phase 2 | WITHDRAWN | ABI-009 (Nab-sirolimus) in Patients With Genetically-confirmed Leigh or Leigh-like Syndrome |
| NCT06843811 | Phase 2 | ENROLLING_BY_INVITATION | Sirolimus for Leigh Syndrome |
| NCT06990984 | Phase 2 | NOT_YET_RECRUITING | A Dose-ranging Study of TTI-0102 in Adults and Children With Leigh Syndrome Spectrum (LSS) |
| NCT00271635 | Phase 2 | COMPLETED | Ascorbic Acid Treatment in CMT1A Trial (AATIC) |
| NCT01401257 | Phase 2 | COMPLETED | Phase II, Randomized, Placebo-controlled Trial in Patients With Charcot-marie-tooth Disease Type 1A |
| NCT02561702 | Phase 2 | COMPLETED | Mexiletine for Muscle Cramps in Charcot Marie Tooth Disease |
| NCT02967679 | Phase 2 | COMPLETED | SERENDEM : MD1003 in Patients Suffering From Demyelinating Neuropathies, an Open Label Pilot Study |
| NCT03124459 | Phase 2 | TERMINATED | Study of ACE-083 in Patients With Charcot-Marie-Tooth Disease |
| NCT03254199 | Phase 2 | TERMINATED | A Study to Assess the Safety and Effectiveness of FLX-787 in Subjects With Charcot-Marie-Tooth Disease Experiencing Muscle Cramps. |
| NCT03943290 | Phase 2 | TERMINATED | Extension Study to Evaluate the Long-Term Effects of ACE-083 in Patients With Facioscapulohumeral Muscular Dystrophy (FSHD) and Charcot-Marie Tooth (CMT) Disease Types 1 and X (CMT1 and CMTX) |
| NCT05777226 | Phase 2 | UNKNOWN | Research of SORD-CMT Natural History and Epalrestat Treatment |
| NCT06482437 | Phase 2 | COMPLETED | Safety and Efficacy of NMD670 in Adult Patients With Type 1 and Type 2 Charcot-Marie-Tooth Disease |
| NCT02171104 | Phase 2 | ACTIVE_NOT_RECRUITING | MT2013-31: Allo HCT for Metabolic Disorders and Severe Osteopetrosis |
| NCT02544217 | Phase 1 | COMPLETED | A Dose-escalating Clinical Trial With KH176 |
| NCT02427178 | Phase 1 | WITHDRAWN | MNGIE Allogeneic Hematopoietic Stem Cell Transplant Safety Study |
| NCT04378075 | Phase 2/3 | TERMINATED | A Study to Evaluate Efficacy and Safety of Vatiquinone for Treating Mitochondrial Disease in Participants With Refractory Epilepsy |
| NCT01780168 | Not specified | RECRUITING | The NIH MINI Study: Metabolism, Infection, and Immunity in Inborn Errors of Metabolism |
| NCT01793168 | Not specified | RECRUITING | Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford |
| NCT01803906 | Not specified | ENROLLING_BY_INVITATION | Tissue Sample Study for Mitochondrial Disorders |
| NCT03137355 | Not specified | RECRUITING | The International Registry for Leigh Syndrome |
| NCT05277363 | Not specified | WITHDRAWN | A Study of the Natural Course of SURF1 Deficiency |
| NCT05554835 | Not specified | RECRUITING | Global Registry and Natural History Study for Mitochondrial Disorders |
| NCT06967831 | Not specified | RECRUITING | Drug Repurposing for Mitochondrial Disorders Using iPSCs Derived Neural Cells |
| NCT01289704 | Phase 2/3 | UNKNOWN | Treadmill, Stretching and Proprioceptive Exercise (TreSPE) Rehabilitation Program for Charcot-Marie-Tooth Neuropathy Type 1A (CMT1A) |
| NCT00541164 | Phase 1/2 | COMPLETED | Effects of Coenzyme Q10 on Charcot-Marie-Tooth Disease |
| NCT05361031 | Phase 1/2 | COMPLETED | The Safety and Tolerability of Engensis (VM202) in Patients With Charcot-Marie-Tooth Disease Subtype 1A (CMT1A) |
| NCT07223632 | Phase 1/2 | ACTIVE_NOT_RECRUITING | Treatment of Charcot-Marie-Tooth Disease, Axonal, Type 2S (CMT2S) in an Individual Patient |
| NCT00149045 | Not specified | COMPLETED | Follow up and Observation of Charcot Marie Tooth Disease in Families |
| NCT01193075 | Not specified | RECRUITING | Natural History Evaluation of Charcot Marie Tooth Disease (CMT) Types CMT1B, CMT2A, CMT4A, CMT4C, and Others |
| NCT01203085 | Not specified | COMPLETED | Development of Charcot Marie Tooth Disease (CMT) Pediatric Scale for Children With CMT |
| NCT01455623 | Not specified | COMPLETED | Development and Validation of a Disability Severity Index for CMT |
| NCT01918826 | Not specified | COMPLETED | Evaluation of the Analgesic Efficiency of the Transcutaneous Neurostimulation in the Charcot Syndrome Marie Tooth on the Pains of Lower Limbs |
| NCT02001038 | Not specified | COMPLETED | Survey of Current Management of Orthopaedic Complications in CMT Patients |
| NCT02011204 | Not specified | COMPLETED | Study of Electrical Impedance Myography (EIM) in ALS |
| NCT02194010 | Not specified | COMPLETED | Disability Severity Scale (DSI) and Hereditary Motor and Sensory Neuropathy Overall Disability Scale (HMSN-R-ODS) |
| NCT02429947 | Not specified | COMPLETED | An Analysis of the Symptomatic Domains Most Relevant to Charcot Marie Tooth Neuropathy (CMT) Patients |
| NCT02532244 | Not specified | COMPLETED | Genetics of Pediatric-Onset Motor Neuron and Neuromuscular Diseases |
| NCT02699190 | Not specified | COMPLETED | LeukoSEQ: Whole Genome Sequencing as a First-Line Diagnostic Tool for Leukodystrophies |
| NCT02788734 | Not specified | COMPLETED | Patient Reported Outcomes Measures (PROM) in Carpal Tunnel Therapies in Patients With Inherited Neuropathies |
| NCT02979145 | Not specified | UNKNOWN | Charcot-Marie-Tooth Disease (CMT) Infant Scale (INC-6611) |
| NCT03047369 | Not specified | RECRUITING | The Myelin Disorders Biorepository Project |
| NCT03460951 | Not specified | COMPLETED | Diffusion Tensor Imaging in Chronic Inflammatory Demyelinating Polyneuropathy (PIDC) |
| NCT03715283 | Not specified | COMPLETED | Change in MUNIX in Patients With CMT1A Undergoing a Home Ankle Strengthening Program Versus Standard of Care |
| NCT03782883 | Not specified | COMPLETED | The Impact of Charcot-Marie-Tooth Disease in the Real World |
| NCT03810508 | Not specified | TERMINATED | A Natural History Study of Charcot-Marie-Tooth 4J (CMT4J) |
| NCT03966287 | Not specified | COMPLETED | Analysis of Pain and Quality of Life in Patients With Charcot-Marie-Tooth Neuropathy (CMT) |
| NCT04010188 | Not specified | RECRUITING | A Registered Cohort Study on Charcot-Marie-Tooth Disease |
| NCT04283175 | Not specified | COMPLETED | Validation Study of Posturology Platforms for Evaluating Postural Control of Hemiparetic and Neuro-muscular Patients |
| NCT04461613 | Not specified | UNKNOWN | Physical Activity in Persons With Charcot-Marie-Tooth: Developing a Measurement Instrument |
| NCT04786522 | Not specified | COMPLETED | Irisin Levels in Patients With Charcot-Marie-Tooth (CMT) Disease |
| NCT04967716 | Not specified | UNKNOWN | Genetics of Charcot-Marie-Tooth Dystrophy and Related Diseases |
| NCT04980807 | Not specified | COMPLETED | Observational Study of Neuromuscular Function in CMT Type 1&2 and Healthy Controls |
| NCT05011006 | Not specified | TERMINATED | NT-3 Levels and Function in Individuals With CMT |
| NCT05827419 | Not specified | TERMINATED | Hearing and Balance Disorders in Peripheral Neuropathy |
| NCT05902351 | Not specified | RECRUITING | Natural History Study for Charcot Marie Tooth Disease |
| NCT06203093 | Not specified | UNKNOWN | Charcot-Marie-Tooth Disease (CMT) Biological Sample Collection for IPSC Generation and Biobanking |
| NCT06666816 | Not specified | RECRUITING | Observational Study to Observe Variations of Gait Parameters in Patients With Neuromuscular Diseases |
Predicted chemistry — Sugi Predict
The predicted patent-compound landscape for SCO2 across ~30M SureChEMBL compounds — explore on Sugi Predict.
Related Atlas pages
- Associated diseases: Leigh syndrome, Charcot-Marie-Tooth disease, cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1, autosomal recessive axonal charcot-marie-tooth disease due to copper metabolism defect, myopia 6, mitochondrial disease
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): autosomal recessive axonal charcot-marie-tooth disease due to copper metabolism defect, B-cell chronic lymphocytic leukemia, cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1, Charcot-Marie-Tooth disease, Leigh syndrome, mitochondrial complex IV deficiency, nuclear type 1, mitochondrial DNA depletion syndrome 1, mitochondrial neurogastrointestinal encephalomyopathy, multiple sclerosis, myopia 6