Seroatlas · Human Serome Atlas

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 EKRKML

LocalizationUniProt · 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.

Disease | GeneticClinVar

32 pathogenic / likely-pathogenic of 375 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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

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.

Canonical record: https://seroatlas.com/gene/SUCLG1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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