Recombinant mouse Pin1 protein

Specific activity is > 1, 200nmol/min/mg, and is defined as the amount of enzyme that cleaves 1nmole of suc-AAFP-PNA per minute at 37C in Tris-HCl pH 8.0 using chymotrypsin.

MGSSHHHHHH SSGLVPRGSH MGSMADEEKL PPGWEKRMSR SSGRVYYFNH ITNASQWERP SGGSTVGGSS KNGQGEPAKV RCSHLLVKHS QSRRPSSWRQ EKITRSKEEA LELINGYIQK IKSGEEDFES LASQFSDCSS AKARGDLGPF SRGQMQKPFE DASFALRTGE MSGPVFTDSG IHIILRTE

Pin1, also known as peptidyl-prolyl cis-trans isomerase NIMA-interacting1, is nuclear PPIase containing a WW protein interaction domain, and is structurally and functionally related to Ess1/Ptf1, an essential protein in budding yeast. Pin1 is thus an essential PPIase that regulates mitosis presumably by interacting with NIMA and attenuating its mitosis-promoting activity. Substrates of Pin1 include the mitotic regulators (Cdc25 phosphatase and NIMA, PLK I, Wee, and Myt1 kinases), several transcription factors like beta-Catenin, c-Jun, and the tumor suppressor protein p53, and some specific proteins like the RNA Pol II, the cytoskeleton protein tau, and the G1/S protein Cyclin D1. Recombinant mouse PIN1 protein, fused to His-tag at N-terminus, was expressed in E. coli and purified by using conventional chromatography.

< 1 EU per 1ug of protein (determined by LAL method)

Liquid in. Phosphate-Buffered Saline (pH 7.4) containing 10% glycerol

Wulf GM., et al. (2002) J Biol Chem. 277(50):47976-9; ; Zacchi P., et al. (2002) Nature. 419(6909): 853-7.