Seroatlas · Human Serome Atlas

SLC25A3

Solute carrier family 25 member 3

Also known as: PHC, S25A3_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q00325
Gene
SLC25A3
Ensembl
ENSG00000075415
Chromosome
12
Canonical length
362 aa
Protein class
Disease related genes, Human disease related genes, Metabolic proteins, Plasma proteins, Potential drug targets, Predicted intracellular proteins, Predicted membrane proteins, Transporters
Subcellular location
Mitochondria

OverviewNCBI Gene

The protein encoded by this gene catalyzes the transport of phosphate into the mitochondrial matrix, either by proton cotransport or in exchange for hydroxyl ions. The protein contains three related segments arranged in tandem which are related to those found in other characterized members of the mitochondrial carrier family. Both the N-terminal and C-terminal regions of this protein protrude toward the cytosol. Multiple alternatively spliced transcript variants have been isolated. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

362 residues, UniProt reviewed canonical sequence.

>Q00325|SLC25A3
     1  MFSSVAHLAR ANPFNTPHLQ LVHDGLGDLR SSSPGPTGQP RRPRNLAAAA VEEQYSCDYG
    61  SGRFFILCGL GGIISCGTTH TALVPLDLVK CRMQVDPQKY KGIFNGFSVT LKEDGVRGLA
   121  KGWAPTFLGY SMQGLCKFGF YEVFKVLYSN MLGEENTYLW RTSLYLAASA SAEFFADIAL
   181  APMEAAKVRI QTQPGYANTL RDAAPKMYKE EGLKAFYKGV APLWMRQIPY TMMKFACFER
   241  TVEALYKFVV PKPRSECSKP EQLVVTFVAG YIAGVFCAIV SHPADSVVSV LNKEKGSSAS
   301  LVLKRLGFKG VWKGLFARII MIGTLTALQW FIYDSVKVYF RLPRPPPPEM PESLKKKLGL
   361  TQ

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against SLC25A3 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
Other membrane
Secreted
No
Transmembrane segments
6
Mean surface accessibility (rSASA)
0.32
Highest tissue expression
1,319 nTPM

Expression across tissuesHPA

Tissue

  • skeletal muscle: 1,319 nTPM
  • tongue: 1,137 nTPM
  • heart muscle: 1,074 nTPM
  • adrenal gland: 576 nTPM
  • esophagus: 470 nTPM
  • parathyroid gland: 468 nTPM

Single-cell type

  • parietal cells: 1,451 nCPM
  • esophageal basal cells: 1,206 nCPM
  • esophageal suprabasal cells: 1,125 nCPM
  • extravillous trophoblasts: 1,087 nCPM
  • migrating cytotrophoblasts: 1,064 nCPM
  • cytotrophoblasts: 926 nCPM

Immune cell

  • total PBMC: 635 nTPM
  • non-classical monocyte: 546 nTPM
  • myeloid DC: 534 nTPM
  • intermediate monocyte: 520 nTPM
  • classical monocyte: 409 nTPM
  • T-reg: 376 nTPM

Brain region

  • choroid plexus: 352 nTPM
  • thalamus: 252 nTPM
  • hypothalamus: 250 nTPM
  • cerebellum: 247 nTPM
  • spinal cord: 232 nTPM
  • midbrain: 231 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about SLC25A3.

Disease | AllUniProt

Conditions SLC25A3 is implicated in, by any mechanism.

Disease | GeneticClinVar

12 pathogenic / likely-pathogenic of 253 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)
0.62
gnomAD pLI
0.07
gnomAD missense Z
1.24
DepMap mean gene effect
-0.69
DepMap dependency class
common

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 SLC25A3 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 SLC25A3 as an antibody target. Whether an autoantibody or antibody against SLC25A3 could matter depends on whether native SLC25A3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

SLC25A3 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 SLC25A3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/SLC25A3. 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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