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475815 Microcystin-LR, Microcystis aeruginosa - CAS 101043-37-2 - Calbiochem

Microcystin-LR, Microcystis aeruginosa - CAS 101043-37-2, is a potent inhibitor of protein phosphatase 1 (IC50 = 1.7 nM) and protein phosphatase 2A (IC50 = 40 pM).

MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: MCYST-LR

Primary Target: PP1
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Overview

Key Spec Table

CAS #Empirical Formula
101043-37-2C₄₉H₇₄N₁₀O₁₂

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      Description
      OverviewCyclic 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 the effect of contaminating phosphatase activities in protein kinase assays. A 2.5 mM (250 µg/100 µl) solution of Microcystin-LR, Microcystis aeruginosa (Cat. No. 475821) in DMSO is also available.
      Catalogue Number475815
      Brand Family Calbiochem®
      SynonymsMCYST-LR
      References
      ReferencesCraig, 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 Toxins 3: Marine Toxins and Venoms (Tu, A.T., Ed.) p. 121, Decker, New York.
      Product Information
      CAS number101043-37-2
      ATP CompetitiveN
      DeclarationNot available for sale outside of the United States.
      FormLyophilized pale-yellow solid
      Hill FormulaC₄₉H₇₄N₁₀O₁₂
      Chemical formulaC₄₉H₇₄N₁₀O₁₂
      ReversibleN
      Structure formula ImageStructure formula Image
      Quality LevelMQ100
      Applications
      ApplicationMicrocystin-LR, Microcystis aeruginosa - CAS 101043-37-2, is a potent inhibitor of protein phosphatase 1 (IC50 = 1.7 nM) and protein phosphatase 2A (IC50 = 40 pM).
      Biological Information
      Primary TargetPP1
      Primary Target IC<sub>50</sub>1.7 nM and 40 pM against PP1 and PP2A, respectively
      Purity≥95% by HPLC
      Physicochemical Information
      Cell permeableN
      Safety Information according to GHS
      RTECSGT2810000
      Safety Information
      R PhraseR: 26/27/28-36/37/38-43

      Very toxic by inhalation, in contact with skin and if swallowed.
      Irritating to eyes, respiratory system and skin.
      May cause sensitization by skin contact.
      S PhraseS: 26-36/37/39-45

      In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
      Wear suitable protective clothing, gloves and eye/face protection.
      In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
      Storage and Shipping Information
      Ship Code Ambient Temperature Only
      Toxicity Highly Toxic
      Hazardous Materials Attention: 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.
      Storage -20°C
      Do not freeze Ok to freeze
      Special InstructionsFollowing reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C. Unstable at > pH 7.7.
      End use certificateY
      Global Trade Item Number
      Catalogue Number GTIN
      475815-500UG 04055977185591