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Mouse Anti-BLK Recombinant Antibody (1E6) (CBMAB-AO101LY)


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Published Data
CBMAB-AO101LY-1
CBMAB-AO101LY in WB and IP
Anti-phosphotyrosine blotting of overexpressed and immunoprecipitated BLKWT, BLKY501F, and BLKR131W in HEK293T cells. The lower molecular weight band corresponds to the inactive form of BLK and the upper band to the active form. IP immunoprecipitation, IB immunoblot, WCE whole-cytoplasmic extract, SLE systemic lupus erythematosus. ...View More
Jiang, S. H., Athanasopoulos, V., Ellyard, J. I., Chuah, A., Cappello, J., Cook, A., ... & Vinuesa, C. G. (2019). Functional rare and low frequency variants in BLK and BANK1 contribute to human lupus. Nature communications, 10(1), 2201.

Summary

Host Animal
Mouse
Specificity
Human
Clone
1E6
Antibody Isotype
IgG1
Application
WB, IF, FC, E

Basic Information

Immunogen
Purified recombinant fragment of human BLK expressed in E. coli.
Host Species
Mouse
Specificity
Human
Antibody Isotype
IgG1
Clonality
Monoclonal
Application Notes
The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.
ApplicationNote
WB1:500-1:2,000
IF(ICC)1:200-1:1,000
FC1:200-1:400
ELISA1:10,000

Formulations & Storage [For reference only, actual COA shall prevail!]

Format
Liquid
Buffer
PBS, 0.5% BSA, 50% Glycerol
Preservative
0.03% sodium azide
Concentration
Batch dependent
Storage
Store at +4°C short term (1-2 weeks). Aliquot and store at -20°C long term. Avoid repeated freezethaw cycles.

Target

Full Name
BLK Proto-Oncogene, Src Family Tyrosine Kinase
Introduction
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]
Entrez Gene ID
640
UniProt ID
P51451
Alternative Names
Tyrosine-protein kinase Blk; B lymphocyte kinase; p55-Blk; BLK
Function
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).
Biological Process
B cell receptor signaling pathway Source: UniProtKB
Cell differentiation Source: GO_Central
Cellular response to DNA damage stimulus Source: GO_Central
Dendritic cell differentiation Source: GO_Central
Fc receptor mediated stimulatory signaling pathway Source: GO_Central
Innate immune response Source: GO_Central
Intracellular signal transduction Source: ProtInc
Negative regulation of B cell proliferation Source: GO_Central
Negative regulation of mast cell proliferation Source: GO_Central
Neuron projection development Source: GO_Central
Peptidyl-tyrosine phosphorylation Source: UniProtKB
Platelet degranulation Source: GO_Central
Positive regulation of dendritic cell apoptotic process Source: GO_Central
Positive regulation of insulin secretion Source: UniProtKB
Regulation of B cell apoptotic process Source: GO_Central
Regulation of B cell receptor signaling pathway Source: GO_Central
Regulation of mast cell degranulation Source: GO_Central
Regulation of platelet aggregation Source: GO_Central
Tolerance induction to self antigen Source: GO_Central
Transmembrane receptor protein tyrosine kinase signaling pathway Source: GO_Central
Cellular Location
Cell membrane. Present and active in lipid rafts. Membrane location is required for the phosphorylation of CD79A and CD79B (By similarity).
Involvement in disease
Maturity-onset diabetes of the young 11 (MODY11): A form of diabetes that is characterized by an autosomal dominant mode of inheritance, onset in childhood or early adulthood (usually before 25 years of age), a primary defect in insulin secretion and frequent insulin-independence at the beginning of the disease.
PTM
Phosphorylated on tyrosine residues after antibody-mediated surface engagement of the B-cell antigen receptor (BCR).
Ubiquitination of activated BLK by the UBE3A ubiquitin protein ligase leads to its degradation by the ubiquitin-proteasome pathway.
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For research use only. Not intended for any clinical use.

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