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C1495

Sigma-Aldrich

CSK, active, GST tagged human

PRECISIO® Kinase, recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution

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About This Item

UNSPSC Code:
51111800
NACRES:
NA.32

recombinant

expressed in baculovirus infected Sf9 cells

Quality Level

200

product line

PRECISIO® Kinase

Assay

≥70% (SDS-PAGE)

form

buffered aqueous glycerol solution

specific activity

361-489 nmol/min·mg

mol wt

~78 kDa

UniProt accession no.

P41240

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... CSK(1445)

Biochem/physiol Actions

CSK is a cytoplasmic tyrosine kinase that has been shown to downregulate the tyrosine kinase activity of the c-src through tyrosine phosphorylation of the c-src carboxy terminus. A yeast 2-hybrid system has been used to identify proteins associated with CSK. The Src homology-3 (SH3) domain of CSK associates with a proline-rich region of PEP, a protein-tyrosine phosphatase expressed in hemopoietic cells. This association is highly specific and it is speculated that PEP may be an effector and/or regulator of CSK in T cells and other hemopoietic cells.

Physical form

Supplied in 50 mM Tris-HCl, pH 7.5, with 150 mM NaCl, 0.2 5mM DTT, 0.1 mM EGTA, 0.1 mM EDTA, 0.1 mM PMSF, and 25% glycerol.

Legal Information

PRECISIO is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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J F Cloutier et al.
The EMBO journal, 15(18), 4909-4918 (1996-09-16)
p50csk is a tyrosine protein kinase (TPK) that represses the activity of Src family TPKs. We previously showed that Csk is a potent negative regulator of antigen receptor signaling in T lymphocytes and that its Src homology (SH) 3 and
J Partanen et al.
Oncogene, 6(11), 2013-2018 (1991-11-01)
We have isolated a cDNA encoding a novel tyrosine kinase family member, named cyl (consensus tyrosine-lacking kinase), from the K562 human leukemia cell line. The deduced cyl protein lacks signal and transmembrane sequences but contains features of known cytoplasmic tyrosine

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