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Protein Page:
BST2 (human)

Overview
BST2 IFN-induced antiviral host restriction factor which efficiently blocks the release of diverse mammalian enveloped viruses by directly tethering nascent virions to the membranes of infected cells. Acts as a direct physical tether, holding virions to the cell membrane and linking virions to each other. The tethered virions can be internalized by endocytosis and subsequently degraded or they can remain on the cell surface. In either case, their spread as cell-free virions is restricted. Its target viruses belong to diverse families, including retroviridae: human immunodeficiency virus type 1 (HIV-1), human immunodeficiency virus type 2 (HIV-2), simian immunodeficiency viruses (SIVs), equine infectious anemia virus (EIAV), feline immunodeficiency virus (FIV), prototype foamy virus (PFV), Mason- Pfizer monkey virus (MPMV), human T-cell leukemia virus type 1 (HTLV-1), Rous sarcoma virus (RSV) and murine leukemia virus (MLV), flavivirideae: hepatitis C virus (HCV), filoviridae: ebola virus (EBOV) and marburg virus (MARV), arenaviridae: lassa virus (LASV) and machupo virus (MACV), herpesviridae: kaposis sarcoma- associated herpesvirus (KSHV), rhabdoviridae: vesicular stomatitis virus (VSV), orthomyxoviridae: influenza A virus, and paramyxoviridae: nipah virus. Can inhibit cell surface proteolytic activity of MMP14 causing decreased activation of MMP15 which results in inhibition of cell growth and migration. Can stimulate signaling by LILRA4/ILT7 and consequently provide negative feedback to the production of IFN by plasmacytoid dendritic cells in response to viral infection. Plays a role in the organization of the subapical actin cytoskeleton in polarized epithelial cells. Belongs to the tetherin family. Note: This description may include information from UniProtKB.
Protein type: Cell development/differentiation; Membrane protein, GPI anchor; Membrane protein, integral
Chromosomal Location of Human Ortholog: 19p13.1
Cellular Component: apical plasma membrane; cell surface; cytoplasm; Golgi apparatus; integral to plasma membrane; membrane; multivesicular body; plasma membrane
Molecular Function: metalloendopeptidase inhibitor activity; protein binding; protein homodimerization activity; signal transducer activity
Biological Process: cell proliferation; cell-cell signaling; defense response to virus; humoral immune response; innate immune response; multicellular organismal development; negative regulation of cell growth; negative regulation of cell migration; negative regulation of plasmacytoid dendritic cell cytokine production; negative regulation of viral genome replication; positive regulation of I-kappaB kinase/NF-kappaB cascade; regulation of actin cytoskeleton organization and biogenesis; response to virus
Reference #:  Q10589 (UniProtKB)
Alt. Names/Synonyms: Bone marrow stromal antigen 2; bone marrow stromal cell antigen 2; BST-2; BST2; CD317; HM1.24 antigen; NPC-A-7; Tetherin
Gene Symbols: BST2
Molecular weight: 19,769 Da
Basal Isoelectric point: 5.43  Predict pI for various phosphorylation states
Select Structure to View Below

BST2

Protein Structure Not Found.
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