SFT2D2
Vesicle transport protein SFT2B
Also known as: dJ747L4.C1.2, SFT2B_HUMAN, UNQ512
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O95562
- Gene
- SFT2D2
- Ensembl
- ENSG00000213064
- Chromosome
- 1
- Canonical length
- 160 aa
- Protein class
- Predicted membrane proteins
OverviewNCBI Gene
Predicted to be involved in protein transport and vesicle-mediated transport. Located in extracellular exosome. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
160 residues, UniProt reviewed canonical sequence.
>O95562|SFT2D2
1 MDKLKKVLSG QDTEDRSGLS EVVEASSLSW STRIKGFIAC FAIGILCSLL GTVLLWVPRK
61 GLHLFAVFYT FGNIASIGST IFLMGPVKQL KRMFEPTRLI ATIMVLLCFA LTLCSAFWWH
121 NKGLALIFCI LQSLALTWYS LSFIPFARDA VKKCFAVCLALocalizationUniProt · AlphaFold · HPA
Whether an antibody against SFT2D2 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
- 4
- Mean surface accessibility (rSASA)
- 0.35
- Highest tissue expression
- 30 nTPM
Expression across tissuesHPA
Tissue
- bone marrow: 30 nTPM
- testis: 17 nTPM
- endometrium: 16 nTPM
- skin: 14 nTPM
- ovary: 14 nTPM
- blood vessel: 12 nTPM
Single-cell type
- esophageal apical cells: 262 nCPM
- late spermatids: 260 nCPM
- corticotrophs: 246 nCPM
- kupffer cells: 193 nCPM
- pdcs: 171 nCPM
- lactotrophs: 134 nCPM
Immune cell
- plasmacytoid DC: 53 nTPM
- non-classical monocyte: 28 nTPM
- intermediate monocyte: 22 nTPM
- basophil: 21 nTPM
- myeloid DC: 17 nTPM
- classical monocyte: 12 nTPM
Brain region
- medulla oblongata: 51 nTPM
- white matter: 50 nTPM
- pons: 45 nTPM
- hypothalamus: 44 nTPM
- hippocampal formation: 43 nTPM
- thalamus: 43 nTPM
ReferencesPubMed · IEDB
Publications for SFT2D2 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
4 publications
- Anti-SFT2D2 autoantibodies alter dendrite spine and cause psychotic behavior in mice.
2024 · J Psychiatr Res · RCR 0.7 · 4 citations - The SFT2D2 gene is associated with the autoimmune pathology of schizophrenia in a Chinese population.
2022 · Front Neurol · RCR 0.5 · 5 citations - A mouse model of schizophrenia induced by autoantibodies against SFT2D2.
2024 · Neuroscience · RCR 0.2 · 1 citations - Clozapine and rapamycin reverse behavioral abnormalities in an animal model of autoimmune schizophrenia.
2025 · Neuropharmacology · 2 citations
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)
- 0.9
- gnomAD pLI
- 0.01
- gnomAD missense Z
- -0.16
- DepMap mean gene effect
- -0.04
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 8% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads SFT2D2 as an antibody target. Whether an autoantibody or antibody against SFT2D2 could matter depends on whether native SFT2D2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
SFT2D2 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 SFT2D2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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