Protein Tyrosine Phosphatase beta (1675-1996), protein tyrosine phosphatase, catalytic
domain, Recombinant, Human (PTP beta, PTPb)
Pricing
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| Catalytic domain, (a.a. 1675-1996), MW=37.7kD, expressed in an E. coli expression system. | | | Catalog # | P9109-15A | | Specific Activity | 40 U/ug. | | Unit Definition | One unit will hydrolyze 1 nmol p-nitrophenyl phosphate per minute at pH 7.4 and 30°C | | Application | Suitable for use in the study of enzyme kinetics, regulation, and to dephosphorylate target substrates. Other applications not tested. | | Assay buffer | 50 mM HEPES, pH 7.4, 2 mM EDTA, 3 mM DTT, 100 mM NaCl, 50mM pNPP. | | Storage and Stability | For long-term storage, aliquot to avoid repeated freezing and thawing and freeze at -70°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Aliquots are stable for at least 6 months. | | Source | E. coli | | Purity | 90% by SDS-PAGE. | | Form | Supplied as a liquid in 25mM Tris-HCl, pH 8.0, 75mM sodium chloride, 0.05% Tween-20, 50% glycerol, 2mM EDTA, 3mM DTT, 10mM glutathione. | | | Important Note | This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. |
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