重组人蛋白磷酸酶1Aα亚型(Human PP2Ca)

PPM1A Human
Protein Phosphatase 1A Alpha Isoform Human Recombinant
Catalog No. PKA-222

Synonyms:
Protein phosphatase 1A, EC 3.1.3.16, Protein phosphatase 2C isoform alpha, PP2C-alpha, IA, PPM1A, PP2CA, MGC9201.

Introduction:
Protein Phosphatase 2C alpha is a member of the PP2C family of Ser/Thr protein phosphatases. PP2C family members are known to be negative regulators of cell stress response pathways. This phosphatase dephosphorylates, and negatively regulates the activities of, MAP kinases and MAP kinase kinases. It has been shown to inhibit the activation of p38 and JNK kinase cascades induced by environmental stresses. This phosphatase can also dephosphorylate cyclin-dependent kinases, and thus may be involved in cell cycle control. Overexpression of this phosphatase is reported to activate the expression of the tumor suppressor gene TP53/p53, which leads to G2/M cell cycle arrest and apoptosis. Three alternatively spliced transcript variants encoding two distinct isoforms have been described.
Protein phosphatase 2C(PP2Cα) is a Mn2+- or Mg2+-dependent protein serine/threonine phosphatase that is essential for regulating cellular stress response in eukaryotes.

Description:
Protein Phosphatase 1A Alpha Isoform Human Recombinant produced is a single, non-glycosylated polypeptide chain containing 382 amino acids and having a molecular mass of 46.6KDa (containing His tag, T7 gene 10 leader, XpressTM Epitope). The protein coding region of PP2Cα (amino acids 1-382) was cloned into an E. coli expression vector(BamHI/HindШ site). PPM1A was overexpressed in E. coli as a soluble His-tag fusion protein, and it was purified by conventional column chromatographic techniques.

Source:
Escherichia Coli.

Physical Appearance:
Sterile filtered colorless solution.

Formulation:
The protein contains 10mM Tris-HCl, pH7.5, 50mM NaCl, 2mM DTT, 1mM MnCl2 and 20% glycerol.

Stability:
Store at 4°C if entire vial will be used within 2-4 weeks.
Store, frozen at -20°C for longer periods of time.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.

Purity:
Greater than 95.0% as determined by:
(a)Analysis by RP-HPLC.
(b)Analysis by SDS-PAGE.

Amino Acid Sequence:
MRGSHHHHHHGMASMTGGQQMGRDLYDDDDKDRWILMGAFLDKPKMEKHN AQGQGNGLRYGLSSMQGWRVEMEDAHTAVIGLPSGLESWSFFAVYDGHAG SQVAKYCCEHLLDHITNNQDFKGSAGAPSVENVKNGIRTG FLEIDEHMRV MSEKKHGADRSGSTAVGVLISPQHTYFINCGDSRGLLCRNRKVHFFTQDH KPSNPLEKERIQNAGGSVMIQRVNGSLAVSRALGDFDYKCVHGKGPTEQL VSPEPEVHDI ERSEEDDQFI ILACDGIWDVMGNEELCDFVRSRLEVTDDL EKVCNEVVDTCLYKGSRDNMSVILICFPNAPKVSPEAVKKEAELDKYLEC RVEEIIKKQG EGVPDLVHVM RTLASENIPSLPPGGELASKRNVIEAVYNR LNPYKNDDTDSTSTDDMW

Activity:
8,000 U/mg

Unit Defenition:
One unit will hydrolyze 1nanomole of p-nitrophenylphosphatate per minute at pH 7.4 at 37°C using 10mM of substrate.

Usage:
Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.