Gene Information
Gene NameIGPR1
OrganismHomo sapiens (Human)
Gene Length282
Protein NamesTransmembrane and immunoglobulin domain-containing protein 2 (CD28 homolog) (Immunoglobulin and proline-rich receptor 1) (IGPR-1)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBQ96BF3
Gene CardTMIGD2
Uniprot IDQ96BF3
PfamNA
In ASDno
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityWidely expressed, mainly by epithelial and endothelial cells, including bronchial epithelial cells of lung, breast glandular and lobular epithelia cells, urothelium of the bladder, skin epidermis, epithelium of gastrointestinal, rectum, endometrial glands of the uterus, ureter, fallopian tube epithelium, colonic epithelium, small bowl epithelium, stomach epithelium, including both chief and parietal cells, trophoblastic epithelium of placenta, and pancreatic acinar cells (at protein level). Consistently expressed in veins and arteries (at protein level). Not detected in thyroid, cerebellum, cerebral cortex and thymus (at protein level). Expressed in lymphoid organs, with highest levels in thymus, spleen, peripheral blood lymphocytes and liver. In the thymus, expressed in CD4+ and CD8+ single- and double-positive cells, but not in immature CD4- and CD8- double-negative cells (at protein level). In peripheral blood mononuclear cells, highly expressed on CD56+ or CD16+ natural killer cells and CD3+ T-cells(at protein level). Not detected on B-cells(at protein level). Expressed in tonsils (at protein level). {ECO:0000269|PubMed:22419821, ECO:0000269|PubMed:23784006}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs58237134  rs28477168 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:22419821};
Single-pass type I membrane protein {ECO:0000269|PubMed:22419821}.
Mouse PG classificationNA
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