B cell linker protein (Blnk) is a protein encoded by the Blnk gene located on chromosome 10 in humans. It is also known as SLP 65 (Src homology 2 domain-containing leukocyte protein of 65 kDa). It derives its name from being an adaptor protein in the B cell receptor signaling cascade with several supporting studies showing improper development of B cells in the absence of Blnk. Blnk undergoes tyrosine phosphorylation by Syk, a B cell receptor activated kinase, which provides a platform for interaction of signaling intermediaries such as the Vav GEF and Grb2.
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Protein Aliases: B cell adaptor containing SH2 domain; B cell linker protein; B-cell activation; B-cell adapter containing a SH2 domain protein; B-cell adapter containing a Src homology 2 domain protein; B-cell linker protein; Cytoplasmic adapter protein; MGC111051; SLP-65; Src homology 2 domain-containing leukocyte protein of 65 kDa; Src homology [SH2] domain-containing leukocyte protein of 65 kD
Gene Aliases: AGM4; BASH; bca; BLNK; BLNK-S; LY57; SLP-65; SLP65
UniProt ID: (Human) Q8WV28
Entrez Gene ID: (Human) 29760
Molecular Function: scaffold/adaptor protein