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生物源
bovine kidney
品質等級
形狀
buffered aqueous glycerol solution
比活性
~2.0 U/vial
分子量
dimer 101 kDa (65 kDa and 36 kDa)
運輸包裝
dry ice
儲存溫度
−70°C
一般說明
Protein phosphatase 2A (PP2A) is a specific protamine-kinase-inactivating phosphatase, one common physiological form of which is PP2A2.
應用
Protein phosphatase 2A2 has been used in a study to investigate two heat-stable protein inhibitors. It has also been used in a study to describe the purification and properties of a protamine kinase from bovine kidney microsomes.
生化／生理作用
Protein Phosphatase 2A2 from bovine kidney was shown to be a unique inhibitor of protamine kinase while other phosphatases in the same family including PP1, PP2B, PP2C did not show any inhibition.
單位定義
One unit will release 1 nanomole of inorganic phosphate from (32)P-labeled phosphorylase per minute at pH 7.0 at 30 deg C.
外觀
Solution of 1 μg per vial in 50 μl of 50 mM Tris-HCl, pH 7.0, containing 14 mM β-Mercaptoethanol, 1mM benzamidine, 0.1 mM PMSF, 1mM EDTA, and 50% glycerol.
訊號詞
Warning
危險聲明
危險分類
Skin Sens. 1
儲存類別代碼
10 - Combustible liquids
水污染物質分類（WGK）
WGK 2
閃點（°F）
Not applicable
閃點（°C）
Not applicable
Protein Phosphatase 2A is a specific protamine-kinase-inactivating phosphatase.
Amick, G.D, et al.
The Biochemical Journal, (Pt 3), 1019-1022 (1992)
G D Amick et al.
Archives of biochemistry and biophysics, 297(1), 80-85 (1992-08-15)
About an eightfold increase in protamine kinase activity was detected following extraction of highly purified microsomes from bovine kidney with 1% Triton X-100. Relative to the soluble fraction, the microsomes contained about 30% protamine kinase activity. The microsomal protamine kinase
H R Matthews et al.
FEBS letters, 364(1), 51-54 (1995-05-01)
Whole cell extracts from rat liver or spinach leaves contain divalent ion-independent protein histidine phosphatase activity due to phosphatases of the PP1/PP2A family. In the rat liver extract, almost all the activity was found in the PP1, PP2A1 and PP2A2
M Li et al.
Biochemistry, 34(6), 1988-1996 (1995-02-14)
Two heat-stable protein inhibitors of protein phosphatase 2A (PP2A), tentatively designated I1PP2A and I2PP2A, have been purified to apparent homogeneity from extracts of bovine kidney. The purified preparations of I1PP2A exhibited an apparent M(r) approximately 30,000 and 250,000 as determined
A Hiraga et al.
The Biochemical journal, 346 Pt 2, 433-439 (2000-03-24)
Protein phosphatase (PP) 2A1, a trimer composed of A-, B- and C-subunits in the PP2A family, has been regarded as a principal form localizing at microtubules (MT), but PP2A2, the dimer of A- and C-subunits, has not. Substantiating the claim
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