SLC17A6
Vesicular glutamate transporter 2
Also known as: DNPI, VGLU2_HUMAN, VGLUT2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9P2U8
- Gene
- SLC17A6
- Ensembl
- ENSG00000091664
- Chromosome
- 11
- Canonical length
- 582 aa
- Protein class
- Metabolic proteins, Predicted membrane proteins, Transporters
OverviewNCBI Gene
Enables L-glutamate uniporter activity. Involved in L-glutamate import and phosphate ion homeostasis. Located in synaptic vesicle membrane. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
582 residues, UniProt reviewed canonical sequence.
>Q9P2U8|SLC17A6
1 MESVKQRILA PGKEGLKNFA GKSLGQIYRV LEKKQDTGET IELTEDGKPL EVPERKAPLC
61 DCTCFGLPRR YIIAIMSGLG FCISFGIRCN LGVAIVDMVN NSTIHRGGKV IKEKAKFNWD
121 PETVGMIHGS FFWGYIITQI PGGYIASRLA ANRVFGAAIL LTSTLNMLIP SAARVHYGCV
181 IFVRILQGLV EGVTYPACHG IWSKWAPPLE RSRLATTSFC GSYAGAVIAM PLAGILVQYT
241 GWSSVFYVYG SFGMVWYMFW LLVSYESPAK HPTITDEERR YIEESIGESA NLLGAMEKFK
301 TPWRKFFTSM PVYAIIVANF CRSWTFYLLL ISQPAYFEEV FGFEISKVGM LSAVPHLVMT
361 IIVPIGGQIA DFLRSKQILS TTTVRKIMNC GGFGMEATLL LVVGYSHTRG VAISFLVLAV
421 GFSGFAISGF NVNHLDIAPR YASILMGISN GVGTLSGMVC PIIVGAMTKN KSREEWQYVF
481 LIAALVHYGG VIFYAIFASG EKQPWADPEE TSEEKCGFIH EDELDEETGD ITQNYINYGT
541 TKSYGATTQA NGGWPSGWEK KEEFVQGEVQ DSHSYKDRVD YSLocalizationUniProt · AlphaFold · HPA
Whether an antibody against SLC17A6 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)
- 0.32
- Highest tissue expression
- 16 nTPM
Expression across tissuesHPA
Tissue
- hypothalamus: 16 nTPM
- retina: 7.3 nTPM
- midbrain: 4.5 nTPM
- amygdala: 4.4 nTPM
- cerebral cortex: 3.9 nTPM
- pituitary gland: 3.5 nTPM
Single-cell type
- retinal ganglion cells: 77 nCPM
- lactotrophs: 65 nCPM
- somatotrophs: 55 nCPM
- brain excitatory neurons: 48 nCPM
- other brain neurons: 31 nCPM
- thyrotrophs: 26 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- thalamus: 86 nTPM
- pons: 83 nTPM
- medulla oblongata: 49 nTPM
- hypothalamus: 39 nTPM
- midbrain: 36 nTPM
- cerebellum: 30 nTPM
ReferencesPubMed · IEDB
Publications for SLC17A6 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
3 publications
- Case report: Mixed dementia associated with autoantibodies targeting the vesicular glutamate transporter 2.
2023 · Front Psychiatry · RCR 0.6 · 5 citations - Anti-VGLUT2 autoantibodies in neurological diseases.
2025 · Brain Behav Immun · 1 citations - Anti-VGLUT2 autoantibodies associated with post-COVID neurocognitive dysfunction: a case report.
2025 · Front Immunol
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
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)
- 0.47
- gnomAD pLI
- 0.16
- gnomAD missense Z
- 1.54
- DepMap mean gene effect
- 0.02
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- hyaloid vascular plexus regression
- L-glutamate import
- monoatomic ion transport
- neurotransmitter loading into synaptic vesicle
- phosphate ion homeostasis
- phosphate ion transport
- regulation of synapse structure or activity
- sodium-dependent phosphate transport
- synaptic transmission, glutamatergic
Molecular functions
- chloride channel activity
- L-glutamate transmembrane transporter activity
- L-glutamate uniporter activity
- neurotransmitter transmembrane transporter activity
- potassium:proton antiporter activity
- sodium:phosphate symporter activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads SLC17A6 as an antibody target. Whether an autoantibody or antibody against SLC17A6 could matter depends on whether native SLC17A6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
SLC17A6 is annotated at the cell surface, where native SLC17A6 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 SLC17A6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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