SUCLG1
Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial
Also known as: SUCA_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P53597
- Gene
- SUCLG1
- Ensembl
- ENSG00000163541
- Chromosome
- 2
- Canonical length
- 346 aa
- Protein class
- Citric acid cycle related proteins, Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Plasma proteins, Potential drug targets, Predicted intracellular proteins
- Subcellular location
- Plasma membrane,Mitochondria,Cytosol
OverviewNCBI Gene
This gene encodes the alpha subunit of the heterodimeric enzyme succinate coenzyme A ligase. This enzyme is targeted to the mitochondria and catalyzes the conversion of succinyl CoA and ADP or GDP to succinate and ATP or GTP. Mutations in this gene are the cause of the metabolic disorder fatal infantile lactic acidosis and mitochondrial DNA depletion. [provided by RefSeq, Feb 2010]
Canonical amino-acid sequenceUniProt
346 residues, UniProt reviewed canonical sequence.
>P53597|SUCLG1
1 MTATLAAAAD IATMVSGSSG LAAARLLSRS FLLPQNGIRH CSYTASRQHL YVDKNTKIIC
61 QGFTGKQGTF HSQQALEYGT KLVGGTTPGK GGQTHLGLPV FNTVKEAKEQ TGATASVIYV
121 PPPFAAAAIN EAIEAEIPLV VCITEGIPQQ DMVRVKHKLL RQEKTRLIGP NCPGVINPGE
181 CKIGIMPGHI HKKGRIGIVS RSGTLTYEAV HQTTQVGLGQ SLCVGIGGDP FNGTDFIDCL
241 EIFLNDSATE GIILIGEIGG NAEENAAEFL KQHNSGPNSK PVVSFIAGLT APPGRRMGHA
301 GAIIAGGKGG AKEKISALQS AGVVVSMSPA QLGTTIYKEF EKRKMLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against SUCLG1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.29
- Highest tissue expression
- 517 nTPM
Expression across tissuesHPA
Tissue
- kidney: 517 nTPM
- tongue: 344 nTPM
- heart muscle: 292 nTPM
- skeletal muscle: 257 nTPM
- parathyroid gland: 229 nTPM
- duodenum: 217 nTPM
Single-cell type
- esophageal apical cells: 645 nCPM
- enterocytes: 620 nCPM
- enteric transient amplifying cells: 435 nCPM
- parietal cells: 424 nCPM
- esophageal suprabasal cells: 410 nCPM
- enteric stem cells: 398 nCPM
Immune cell
- total PBMC: 143 nTPM
- myeloid DC: 116 nTPM
- non-classical monocyte: 115 nTPM
- intermediate monocyte: 110 nTPM
- T-reg: 108 nTPM
- NK-cell: 103 nTPM
Brain region
- choroid plexus: 79 nTPM
- cerebellum: 47 nTPM
- white matter: 47 nTPM
- hypothalamus: 43 nTPM
- spinal cord: 42 nTPM
- thalamus: 40 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about SUCLG1.
Disease | AllUniProt
Conditions SUCLG1 is implicated in, by any mechanism.
- Mitochondrial DNA depletion syndrome 9 (MTDPS9) MIM:245400
Disease | GeneticClinVar
32 pathogenic / likely-pathogenic of 375 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Mitochondrial DNA depletion syndrome 9
- Melanoma
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.88
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.22
- DepMap mean gene effect
- -0.2
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
- nucleotide binding
- RNA binding
- succinate-CoA ligase (ADP-forming) activity
- succinate-CoA ligase (GDP-forming) activity
- succinate-CoA ligase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of SUCLG1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads SUCLG1 as an antibody target. Whether an autoantibody or antibody against SUCLG1 could matter depends on whether native SUCLG1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
SUCLG1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label SUCLG1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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