Immunogen
Purified recombinant fragment of human Blk expressed in E. Coli.
Specificity
Blk Monoclonal Antibody detects endogenous levels of Blk protein.
Formulation
Ascitic fluid containing 0.03% sodium azide,0.5% BSA, 50%glycerol.
Dilution rate
Western Blot: 1/500 - 1/2000. Immunofluorescence: 1/200 - 1/1000. Flow cytometry: 1/200 - 1/400. ELISA: 1/10000. Not yet tested in other applications.
Purification process (Immunogen)
Affinity purification
Background
This gene encodes a nonreceptor tyrosine-kinase of the src family of proto-oncogenes that are typically involved in cell proliferation and differentiation. The protein has a role in B-cell receptor signaling and B-cell development. The protein also stimulates insulin synthesis and secretion in response to glucose and enhances the expression of several pancreatic beta-cell transcription factors. [provided by RefSeq, Aug 2010],
Function
catalytic activity:ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate.,function:May function in a signal transduction pathway that is restricted to B-lymphoid cells.,similarity:Belongs to the protein kinase superfamily. Tyr protein kinase family. SRC subfamily.,similarity:Contains 1 protein kinase domain.,similarity:Contains 1 SH2 domain.,similarity:Contains 1 SH3 domain.,
Protein name
Tyrosine-protein kinase Blk
Other name
BLK; Tyrosine-protein kinase Blk; B lymphocyte kinase; p55-Blk
Human protein sequence Database
P51451
Mouse protein sequence database
P16277
Rat protein sequence database
Cellular localization
Cell membrane ; Lipid-anchor . Present and active in lipid rafts. Membrane location is required for the phosphorylation of CD79A and CD79B (By similarity). .
Tissue expression
Expressed in lymphatic organs, pancreatic islets, Leydig cells, striate ducts of salivary glands and hair follicles.
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