Adhesion G protein-coupled receptor B1 - O14514 (AGRB1_HUMAN)


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Phosphatidylserine receptor which enhances the engulfment of apoptotic cells (PubMed:24509909). Also mediates the binding and engulfment of Gram-negative bacteria (PubMed:26838550). Stimulates production of reactive oxygen species by macrophages in response to Gram-negative bacteria, resulting in enhanced microbicidal macrophage activity (PubMed:26838550). In the gastric mucosa, required for recognition and engulfment of apoptotic gastric epithelial cells (PubMed:24509909). Promotes myoblast fusion (By similarity). Activates the Rho pathway in a G-protein-dependent manner (PubMed:23782696). Inhibits MDM2-mediated ubiquitination and degradation of DLG4/PSD95, promoting DLG4 stability and regulating synaptic plasticity (By similarity). Required for the formation of dendritic spines by ensuring the correct localization of PARD3 and TIAM1 (By similarity). Potent inhibitor of angiogenesis in brain and may play a significant role as a mediator of the p53/TP53 signal in suppression of glioblastoma (PubMed:11875720). UniProt
Pathway Maps
      ESCHER  BiGG
Subunit Structure
Interacts with ELMO1 and DOCK (By similarity). When bound to ELMO1 and DOCK1, acts as a module to promote apoptotic cell engulfment (By similarity). Interacts with MDM2; the interaction results in inhibition of MDM2-mediated ubiquitination and degradation of DLG4/PSD95 (By similarity). Interacts with PARD3 and TIAM1; the interaction is required for correct dendritic. localization of PARD3 and TIAM1 and for dendritic spine formation (PubMed:23595754). Interacts with MAGI1 (PubMed:9647739). Interacts with MAGI3 (PubMed:10748157). Interacts with BAIAP2 (PubMed:10343108). Interacts with PHYHIP (By similarity). Interacts with DLG4 (via PDZ domain) (PubMed:23782696). Vasculostatin-120: Interacts with CD36 (PubMed:19176395). Vasculostatin-120: Interacts with ARRB2 (PubMed:23782696). Interacts with BAIAP3; this interaction is direct (PubMed:9790924). UniProt
The TSP type-1 repeats in the extracellular domain mediate binding to phosphatidylserine. They are also required for bacterial recognition and binding to bacterial outer membrane lipopolysaccharide. UniProt
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