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PTP1B, Human, Recombinant, E. coli
Protein Tyrosine Phosphatase 1B
Recombinant, human PTP1B expressed in E. coli. PTP1B, an ubiquitous nontransmembrane protein tyrosine phosphatase, was originally identified in human placenta. This highly active enzyme is useful for the study of tyrosine phosphatase kinetics, substrate specificity, and for screening inhibitors.
产品信息
Form Liquid
Formulation In 50 mM HEPES, 1 mM DTT, 1 mM EDTA, 0.05% NP-40, pH 7.2.
Molar mass 37400
Avoid freeze/thaw 是的
Specific activity ≥20 units/mg
Unit definition One unit is defined as the amount of enzyme that will hydrolyze 1 µmol of phosphopeptide substrate (Cat. No. 539737) per min at 30°C, pH 7.2 using 150 µM of substrate.
Purity ≥90% by SDS-PAGE
商店和运输信息
Storage ≤ -70°C
Ship Dry Ice Only
Standard Handling |