Western blot of human Jurkat cell lysate. The blot was probed with mouse monoclonal anti-Crk II (C-terminal region) antibody at 1:250 (lane 1), 1:500 (lane 2), or 1:1000 (lane 3).
Anti-Crk II (C-terminal region) Antibody
Bulk Order Anti-Crk II (C-terminal region) Antibody
Crk II (C-terminal region)
The Crk family of adaptor proteins (Crk I, Crk II and CrkL) are Src Homology 2 (SH2) and Src Homology 3 (SH3) domain-containing proteins that form protein complexes important for transmiting signals downstream of tyrosine kinases. Both Crk II and CrkL are composed of a single SH2 domain, followed by two tandem SH3 domains. Crk II is also alternatively spliced to a minor product, Crk I, which is structurally and functionally more similar to the v-Crk oncogene. Both Crk II and CrkL are ubiquitously expressed and their SH domains are highly homologous, however both are required for mouse development and have distinct non-overlapping phenotypes in knockout mice. Phosphorylation may be important for regulating Crk activity. Crk II Tyr-221 (CrkL Tyr-207) phosphorylation is a negative regulatory site, while Crk Tyr-251 phosphorylation in the SH3 domain is a positive regulatory site. EGF stimulation induces phosphorylation of Tyr-251, which increases binding of Crk to the SH2 domain of Abl, and promotes transactivation of Abl.
Protein A Purified
Clone (M332) was generated from a recombinant sequence containing the C-terminal half of mouse Crk II. This sequence has high homology to human and rat Crk II.
Human, Mouse, Rat
Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.
PBS + 1 mg/ml BSA, 0.05% NaN3 and 50% glycerol
This antibody detects a 40 kDa* protein corresponding to the molecular mass of Crk II on SDS-PAGE immunoblots of rat PC12 and human Jurkat cells.
Western blots performed on each lot.
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After date of receipt, stable for at least 1 year at -20°C.