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Overview
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Fyn is a protein encoded by the FYN gene which is approximately 60, 7 kDa. Fyn is localised to the cytoplasm, cell membrane and nucleus. It is involved in RET signalling, GAB1 signalosome, EPH-Ephrin signalling, HIV life cycle and the development Slit-Robo signalling. It is a membrane-associated tyrosine kinase that plays a role in the regulation of cell growth and survival, cell adhesion, integrin-mediated signalling, cytoskeletal remodelling, cell motility, immune response and axon guidance. Following activation by PKA, the protein subsequently associates with PTK2/FAK1, allowing PTK2/FAK1 phosphorylation, activation and targeting to focal adhesions. Fyn isoform 1 is highly expressed in the brain and isoform 2 is expressed in cells of hemopoietic lineages, especially T-lymphocytes. Mutations in the FYN gene may result in Wiskott-Aldrich syndrome. STJ93171 was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen. This polyclonal antibody detects endogenous levels of Fyn protein.
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Overview