Gene Information
Gene NameUNQ659/PRO1291
OrganismHomo sapiens (Human)
Gene Length282
Protein NamesV-set domain-containing T-cell activation inhibitor 1 (B7 homolog 4) (B7-H4) (B7h.5) (Immune costimulatory protein B7-H4) (Protein B7S1) (T-cell costimulatory molecule B7x)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBQ7Z7D3
Gene CardVTCN1
Uniprot IDQ7Z7D3
PfamPF07686
In ASDno
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityOverexpressed in breast, ovarian, endometrial, renal cell (RCC) and non-small-cell lung cancers (NSCLC). Expressed on activated T- and B-cells, monocytes and dendritic cells, but not expressed in most normal tissues (at protein level). Widely expressed, including in kidney, liver, lung, ovary, placenta, spleen and testis. {ECO:0000269|PubMed:12818165, ECO:0000269|PubMed:14568939, ECO:0000269|PubMed:15878339, ECO:0000269|PubMed:16606666, ECO:0000269|PubMed:16782226, ECO:0000269|PubMed:16798883, ECO:0000269|PubMed:17509674}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 4GOS  (X-ray  1.59A 
DBSNP NA 
Subcellular location [CC]Cell membrane {ECO:0000255};
Single-pass type I membrane protein {ECO:0000305}. Note=Expressed at the cell surface. A soluble form has also been detected. {ECO:0000255, ECO:0000269|PubMed:12818165, ECO:0000269|PubMed:15878339, ECO:0000269|PubMed:16782226}.
Mouse PG classificationNA
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