Protein tyrosine phosphatase SHP-1, also known as PTPN6 (GenBank accession number NM_080549), full length, with N-terminal GST-tag, MW=95 kDa, expressed in an E. coli expression system.
Specific activity: 1 U/ug
Unit definition: One unit will hydrolyze 1 pmol p-nitrophenyl phosphate per minute at pH 7.4 and 30°C.
Background
PTPN6 gene is preferentially expressed in a variety of hematopoietic cells, and is an early response gene in lymphokine stimulated cells. The noncatalytic N-terminus of this PTP can interact with MAP kinases and negatively regulates ERK2 and p38 MAP-kinases activity. The PTPN6 was shown to be involved in the regulation of T cell antigen receptor (TCR) signaling, which was thought to function through dephosphorylating the molecules related to MAP kinase pathway.
Immunogen Region
1-577
Tag
N-terminal GST-tag
Formulation
25 mM Tris-HCl, pH 8.0, 75 mM NaCl, 0.05% Tween-20, 50% glycerol, 2 mM EDTA, 1 mM DTT, 10 mM glutathione.
Species
Human
Application
Useful for the study of enzyme kinetics and regulation, to dephosphorylate target substrates and for screening inhibitors.
Notes
50 mM HEPES, pH 7.4, 2 mM EDTA, 3 mM DTT, 100 mM NaCl, 50 mM pNPP.