475821

Microcystin-LR

from Microcystis aeruginosa, ≥95% (HPLC), liquid, protein phosphatase 2A and protein phosphatase 1 inhibitor, Calbiochem^®

• 同義詞: InSolution Microcystin-LR, Microcystis aeruginosa
• 經驗公式（希爾表示法）: C₄₉H₇₄N₁₀O₁₂
• 分子量：: 995.17
• 分類程式碼代碼: 12352200
• NACRES: NA.77

屬性

• 產品名稱: Microcystin-LR, Microcystis aeruginosa, InSolution, ≥95%, inhibitor of protein phosphatase 1 (PP1) and protein phosphatase 2A (PP2A)
• 品質等級: 100
• 化驗: ≥95% (HPLC)
• 形狀: liquid
• 製造商／商標名: Calbiochem^®
• 儲存條件: OK to freeze; desiccated (hygroscopic); protect from light
• 運輸包裝: wet ice
• 儲存溫度: −20°C

描述

一般說明

Cyclic heptapeptide toxin isolated from the freshwater cyanobacteria, Microcystis aeruginosa. Potent inhibitor of protein phosphatase 1 (PP1) and protein phosphatase 2A (PP2A). Unlike Okadaic Acid (Cat. No. 495604), microcystin-LR is effective on both PP1 (IC₅₀ = 1.7 nM) and PP2A (IC₅₀ = 40 pM). Reacts with phosphatase in a two-step mechanism involving rapid binding and inactivation of the catalytic subunit followed by slower covalent interactions. Has no effect on protein kinases, making it useful for reducing contaminating phosphatase activities in protein kinase assays.

生化／生理作用

Cell permeable: no

Primary Target
protein phosphatase 1 (PP1) and protein phosphatase 2A (PP2A)

Product does not compete with ATP.

Reversible: no

Target IC₅₀: 1.7 nM, 40 pM, against protein phosphatase 1 (PP1), protein phosphatase 2A (PP2A), respectively

包裝

Packaged under inert gas

yes

警告

Toxicity: Highly Toxic (H)

外觀

A 2.5 mM (250 µg/100 µl) solution of Microcystin-LR, Microcystis aeruginosa (Cat. No. 475815) in DMSO.

重構

Following initial thaw, aliquot and freeze (-20°C).

其他說明

Craig, M., et al. 1996. Biochem. Cell Biol. 74, 569.
Nishiwaki, R., et al. 1994. Cancer Lett. 83, 283.
Amick, G.D., et al. 1992. Biochem. J.287, 1019.
Davidson, H.W., et al. 1992. J. Cell Biol.116, 1343.
Nishiwaki-Matsushima, R., et al. 1992. J. Cancer Res. Clin. Oncol. 118, 420.
Cohen, P., et al. 1990. Trends Biochem. Sci.15, 98.
MacKintosh, C., et al. 1990. FEBS Lett.264, 187.
Cohen, P., et al. 1989. FEBS Lett.250, 596.
Carmichael, W.W. 1988. in Handbook of Natural Toxins3,Marine Toxins and Venoms (Tu, A.T., Ed.) p. 121, Decker, New York.

Due to the nature of the Hazardous Materials in this shipment, additional shipping charges may be applied to your order. Certain sizes may be exempt from the additional hazardous materials shipping charges. Please contact your local sales office for more information regarding these charges.

法律資訊

Not available for sale outside of the United States.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

安全資訊

• 儲存類別代碼: 10 - Combustible liquids
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: 188.6 °F - closed cup - (Dimethylsulfoxide)
• 閃點（°C）: 87 °C - closed cup - (Dimethylsulfoxide)