Factor P, Human

Native factor P from human serum. Glycoprotein found in circulating blood plasma in dimeric, trimeric, and tetrameric forms with M.W. of ~92 kDa, ~138 kDa, and ~184 kDa, respectively. Present in normal human serum at about 20 µg/ml. Regulatory protein of the alternative pathway of complement activation. Accelerates complement activation by binding to and stabilizing the alternative pathway C3 and C5 convertase enzymes.

In PBS, pH 7.2.

Following initial thaw, aliquot and freeze (-70°C).

Prepared from serum that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV.

Pangburn, M.K., et al. 1988. Methods Enzymol. 162, 639.
Smith, C.A., et al. 1984. J. Biol. Chem. 259, 4582.

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RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.

Toxicity: Standard Handling (A)