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Merck
CN

475821

Microcystin-LR

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

别名:

InSolution Microcystin-LR, Microcystis aeruginosa

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关于此项目

经验公式（希尔记法）:
C49H74N10O12
分子量:
995.17
UNSPSC Code:
12352200
NACRES:
NA.77

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产品名称

Microcystin-LR, Microcystis aeruginosa, InSolution, ≥95%, inhibitor of protein phosphatase 1 (PP1) and protein phosphatase 2A (PP2A)

assay

≥95% (HPLC)

form

liquid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)
protect from light

shipped in

wet ice

storage temp.

−20°C

Quality Level

100

相关类别

Other Notes

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.

Biochem/physiol Actions

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

Disclaimer

Toxicity: Highly Toxic (H)

General description

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.

Legal Information

Not available for sale outside of the United States.
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Packaging

Packaged under inert gas
yes

Physical form

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

Preparation Note

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

存储类别

10 - Combustible liquids

wgk

WGK 2

flash_point_f

188.6 °F - closed cup - (Dimethylsulfoxide)

flash_point_c

87 °C - closed cup - (Dimethylsulfoxide)

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