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204863 Complement iC3b, Human

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204863
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204863-250UG
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      Ampoule plast. 250 μg
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      Description
      OverviewNative, human iC3b complement component. iC3b is formed by the cleavage of C3b by Factor I in the presence of Factor H, CR1, or membrane cofactor protein. Factor I cleavage of C3b to iC3b inactivates and prevents C3b from functioning in the C3 or C5 convertase enzymes. The iC3b fragment thus produced is a glycoprotein composed of two C3α′ polypeptides of M.W. 43 kDa and M.W. 63 kDa which are disulfide bonded to the intact C3 β-chain (M.W. 75 kDa). iC3b interaction with CR3 (CD11b/CD18) receptors present on a variety of white blood cells greatly enhances phagocytosis of iC3b coated target cells or particles.
      Catalogue Number204863
      Brand Family Calbiochem®
      References
      ReferencesRosen, H. and Law, S.K.A. 1989. Curr. Top. Microbiol. Immunol. 153, 99.
      Ross, G.S. and Medof, M.E. 1985. Adv. Immunol. 37, 217.
      Product Information
      FormLiquid
      FormulationIn PBS, pH 7.2.
      PreservativeNone
      Quality LevelMQ100
      Biological Information
      Purity≥90% by SDS-PAGE
      SourcePrepared from serum that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV.
      Concentration Label Please refer to vial label for lot-specific concentration
      Physicochemical Information
      ContaminantsIgG, IgA, IgM, C5, Factor H, or Factor I: ≤trace amounts
      Storage and Shipping Information
      Ship Code Dry Ice Only
      Toxicity Standard Handling
      Storage ≤ -70°C
      Avoid freeze/thaw Avoid freeze/thaw
      Do not freeze Ok to freeze
      Special InstructionsFollowing initial thaw, aliquot and freeze (-70°C).
      Global Trade Item Number
      Référence GTIN
      204863-250UG 04055977219647