Product Name: Blk (185-191) pY188
Product Number: PE-04AIR99
Size: 200 µg      Price:47.00
1 mg      $US94.00
5 mg      206.00
Peptide Name: Blk (185-191) pY188

Product Use: Services as a blocking peptide for use with the BLK-pY188 rabbit polyclonal antibody (Cat. No.: AB-PK542) that is also available from Kinexus. This phosphopeptide may also be useful as a substrate for screening the phosphatase activity of protein phosphatases. The peptide sequence is located in the SH2 domain. One of the two major in vivo phosphorylation sites in BLK. The effect of its phosphorylation is unclear.

Peptide Production Method: Solid-phase peptide synthesis

Peptide Origin: Homo sapiens

Peptide Sequence: GGY-pY-ISP

Peptide Modifications N Terminus: Free amino

Peptide Modifications C Terminus: βAla-Cys

Peptide Modifications Other: Phosphorylated

Peptide Molecular Mass Calculated: 1009.02 Da

Peptide Purity Percent after Synthesis and Purification: >95

Peptide Appearance: White powder

Peptide Form: Solid

Storage Conditions: -20°C

Related Product 1: Blk - pY188 phosphosite-specific antibody (Cat. No.: AB-PK542)

Scientific Background: Blk is a protein-tyrosine kinase that is a member of the TK group of protein kinases in the Src family. It has been reported that Blk is expressed specifically in the B cell lineage and plays a role in signal transduction pathway that is restricted to B lymphoid cells. However, this kinase has low to reasonably high expression (e.g. skeletal muscle, kidney, thyroid, breast) in most tested human tissues except in the brain and spinal cord where it is poorly expressed. Orthologues of Blk are highly conserved in mammals and birds. Blk is inhibited by phosphorylation at Y501. Blk has been linked with the development of colorectal adenocarcinomas. Stimulation of resting B-lymphocytes with antibodies to surface immunoglobulin (sIgD or sIgM) induces activation of Blk.