475821

Microcystin-LR

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

• Sinonimo/i: InSolution Microcystin-LR, Microcystis aeruginosa
• Formula empirica (notazione di Hill): C₄₉H₇₄N₁₀O₁₂
• Peso molecolare: 995.17
• Codice UNSPSC: 12352200
• NACRES: NA.77

Proprietà

• Nome del prodotto: Microcystin-LR, Microcystis aeruginosa, InSolution, ≥95%, inhibitor of protein phosphatase 1 (PP1) and protein phosphatase 2A (PP2A)
• Livello qualitativo: 100
• Saggio: ≥95% (HPLC)
• Stato: liquid
• Produttore/marchio commerciale: Calbiochem^®
• Condizioni di stoccaggio: OK to freeze; desiccated (hygroscopic); protect from light
• Condizioni di spedizione: wet ice
• Temperatura di conservazione: −20°C

Descrizione

Descrizione generale

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.

Azioni biochim/fisiol

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

Confezionamento

Packaged under inert gas

yes

Attenzione

Toxicity: Highly Toxic (H)

Stato fisico

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

Ricostituzione

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

Altre note

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.

Note legali

Not available for sale outside of the United States.

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 10 - Combustible liquids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): 188.6 °F - closed cup - (Dimethylsulfoxide)
• Punto d’infiammabilità (°C): 87 °C - closed cup - (Dimethylsulfoxide)