G-protein coupled receptor homolog US28

UniProtKB accession:  P69333

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Receptor for a C-C type chemokine. Binds to a great number of different CC-chemokines including CCL5/RANTES, CCL2/MCP-1, CCL3/MIP-1-alpha as well as CX3CL1/Fractalkine (PubMed:29882741). Transduces signals resulting in the activation of MAP kinase signaling pathways and augmentation of intracellular calcium ion levels, leading to alterations in chemotactic behavior of vascular smooth muscle cells and macrophages. The US28 receptor also exhibits high levels of agonist-independent signaling activity and agonist-independent endocytosis. Interacts with the host Gi complex without activating it, thereby probably interfering with the chemokine-Gi signaling. May also function as a G protein sink to sequester G protein from the cell surface via internalization. Interacts with endogenous Gaq/11 subunits and thereby constitutively activates phospholipase C (By similarity).