SLC23A2
Solute carrier family 23 member 2
Also known as: KIAA0238, S23A2_HUMAN, SLC23A1, SVCT2, YSPL2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9UGH3
- Gene
- SLC23A2
- Ensembl
- ENSG00000089057
- Chromosome
- 20
- Canonical length
- 650 aa
- Protein class
- Metabolic proteins, Predicted membrane proteins, Transporters
- Subcellular location
- Golgi apparatus,Vesicles
OverviewNCBI Gene
The absorption of vitamin C into the body and its distribution to organs requires two sodium-dependent vitamin C transporters. This gene encodes one of the two required transporters and the encoded protein accounts for tissue-specific uptake of vitamin C. Previously, this gene had an official symbol of SLC23A1. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
650 residues, UniProt reviewed canonical sequence.
>Q9UGH3|SLC23A2
1 MMGIGKNTTS KSMEAGSSTE GKYEDEAKHP AFFTLPVVIN GGATSSGEQD NEDTELMAIY
61 TTENGIAEKS SLAETLDSTG SLDPQRSDMI YTIEDVPPWY LCIFLGLQHY LTCFSGTIAV
121 PFLLADAMCV GYDQWATSQL IGTIFFCVGI TTLLQTTFGC RLPLFQASAF AFLAPARAIL
181 SLDKWKCNTT DVSVANGTAE LLHTEHIWYP RIREIQGAII MSSLIEVVIG LLGLPGALLK
241 YIGPLTITPT VALIGLSGFQ AAGERAGKHW GIAMLTIFLV LLFSQYARNV KFPLPIYKSK
301 KGWTAYKLQL FKMFPIILAI LVSWLLCFIF TVTDVFPPDS TKYGFYARTD ARQGVLLVAP
361 WFKVPYPFQW GLPTVSAAGV IGMLSAVVAS IIESIGDYYA CARLSCAPPP PIHAINRGIF
421 VEGLSCVLDG IFGTGNGSTS SSPNIGVLGI TKVGSRRVIQ CGAALMLALG MIGKFSALFA
481 SLPDPVLGAL FCTLFGMITA VGLSNLQFID LNSSRNLFVL GFSIFFGLVL PSYLRQNPLV
541 TGITGIDQVL NVLLTTAMFV GGCVAFILDN TIPGTPEERG IRKWKKGVGK GNKSLDGMES
601 YNLPFGMNII KKYRCFSYLP ISPTFVGYTW KGLRKSDNSR SSDEDSQATGLocalizationUniProt · AlphaFold · HPA
Whether an antibody against SLC23A2 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
- Cell surface
- Secreted
- No
- Transmembrane segments
- 12
- Mean surface accessibility (rSASA)
- 0.3
- Highest tissue expression
- 99 nTPM
Expression across tissuesHPA
Tissue
- retina: 99 nTPM
- adrenal gland: 97 nTPM
- choroid plexus: 64 nTPM
- liver: 54 nTPM
- ovary: 36 nTPM
- cerebral cortex: 33 nTPM
Single-cell type
- retinal bipolar cells: 766 nCPM
- retinal pigment epithelial cells: 750 nCPM
- choroid plexus epithelial cells: 667 nCPM
- adrenal cortex cells: 564 nCPM
- cone photoreceptor cells: 547 nCPM
- rod photoreceptor cells: 487 nCPM
Immune cell
- plasmacytoid DC: 2.4 nTPM
- memory B-cell: 1.8 nTPM
- myeloid DC: 1.5 nTPM
- neutrophil: 1.2 nTPM
- classical monocyte: 1.1 nTPM
- gdT-cell: 1.1 nTPM
Brain region
- choroid plexus: 202 nTPM
- thalamus: 87 nTPM
- midbrain: 83 nTPM
- white matter: 82 nTPM
- pons: 75 nTPM
- hippocampal formation: 73 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about SLC23A2.
Disease | ImmuneIEDB
Conditions an epitope on SLC23A2 was assayed in.
- influenza T cell
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)
- 0.53
- gnomAD pLI
- 0.01
- gnomAD missense Z
- 3.63
- DepMap mean gene effect
- 0.03
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- blood circulation
- cell adhesion
- cellular response to ethanol
- L-ascorbic acid metabolic process
- L-ascorbic acid transmembrane transport
- positive regulation of dendrite extension
- response to oxidative stress
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Nucleobase cation symporter 2 family
- Permease family
- Xanthine/uracil permease
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of SLC23A2 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 SLC23A2 as an antibody target. Whether an autoantibody or antibody against SLC23A2 could matter depends on whether native SLC23A2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
SLC23A2 is annotated at the cell surface, where native SLC23A2 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label SLC23A2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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