Family :

Kinase

Catalog No. :

Blk-H00A

Protein :

Blk

UniProt :

P51451

Organism :

Homo sapiens

Expression system :

Insect cell

Tag :

No tag

Sequence :

G2-P505

Assay :

Structure :

Inquiry :

Product Information

Symbol/Gene Name:  BLK

Alias:  Tyrosine-protein kinase Blk,B lymphocyte kinase,p55-Blk

Uniprot: P51451

Background: Non-receptor tyrosine kinase involved in B-lymphocyte development, differentiation and signaling (By similarity). B-cell receptor (BCR) signaling requires a tight regulation of several protein tyrosine kinases and phosphatases, and associated coreceptors (By similarity). Binding of antigen to the B-cell antigen receptor (BCR) triggers signaling that ultimately leads to B-cell activation (By similarity). Signaling through BLK plays an important role in transmitting signals through surface immunoglobulins and supports the pro-B to pre-B transition, as well as the signaling for growth arrest and apoptosis downstream of B-cell receptor (By similarity). Specifically binds and phosphorylates CD79A at 'Tyr-188'and 'Tyr-199', as well as CD79B at 'Tyr-196' and 'Tyr-207' (By similarity). Phosphorylates also the immunoglobulin G receptors FCGR2A, FCGR2B and FCGR2C (PubMed:8756631). With FYN and LYN, plays an essential role in pre-B-cell receptor (pre-BCR)-mediated NF-kappa-B activation (By similarity). Contributes also to BTK activation by indirectly stimulating BTK intramolecular autophosphorylation (By similarity). In pancreatic islets, acts as a modulator of beta-cells function through the up-regulation of PDX1 and NKX6-1 and consequent stimulation of insulin secretion in response to glucose (PubMed:19667185). Phosphorylates CGAS, promoting retention of CGAS in the cytosol (PubMed:30356214).

Construct: GG-Blk(G2-P505 end)

Expression Host: Insect cell

Purity: 90%

Formulation: 50 mM Tris-HCl (pH7.5), 200 mM NaCl, 20% glycerol

Supplied as sterile

Please contact us for any concerns or special requirements.

Please refer to the specific buffer information in the hard copy of CoA.

Endotoxin:

< 0.01 EU per μg of the protein

Shipping:

Liquid. It is shipped out with blue ice.

Stability & Storage:

Samples are stable for up to twelve months from date of receipt at -20 to -80

Store it under sterile conditions at -20 to -80. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.