The Biological Half-time of Hageman Factor.

نویسندگان

  • J J VELTKAMP
  • E A LOELIGER
  • H C HEMKER
چکیده

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Activation of hageman factor and prekallikrein and generation of kinin by various microbial proteinases.

Activation of the Hageman factor-kallikrein-kinin system by serratial 56-kDa proteinase was previously demonstrated (Matsumoto, K., Yamamoto, T., Kamata, T., and Maeda, H. (1984) J. Biochem. (Tokyo) 96, 739-749; Kamata, R., Yamamoto, T., Matsumoto, K., and Maeda, H. (1985) Infect. Immun. 48, 747-753). To investigate whether the activation of the system is specific for 56-kDa proteinase or is fo...

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Interactions of C1(-)-inhibitors from normal persons and patients with type II hereditary angioneurotic edema with purified activated Hageman factor (factor XIIa).

Activated high molecular weight Hageman factor (75 Kd) and Hageman factor carboxy-terminal fragments both formed complexes with purified C1(-)-inhibitor, but the Hageman factor fragments appeared to have a higher affinity for the C1(-)-inhibitor than activated Hageman factor. Therefore, the clot-promoting activity of activated Hageman factor might be relatively unimpaired if Hageman factor frag...

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Inhibition of Absorption of Human Hageman Factor to Kaolin

tor from human or rabbit plasma with a variety of immunologic reactants was studied. Evidence of an interaction was not obtained and neither binding of radiolabeled Hageman factor to immune aggregates nor depletion of the Hageman factor from the supernate was observed. Cleavage of the labeled Hageman factor molecule into its 30,000 ;molecular weight-active fragments was not detectable after inc...

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Inhibition of Absorption of Human Hageman Factor to Kaolin by Plasma

tor from human or rabbit plasma with a variety of immunologic reactants was studied. Evidence of an interaction was not obtained and neither binding of radiolabeled Hageman factor to immune aggregates nor depletion of the Hageman factor from the supernate was observed. Cleavage of the labeled Hageman factor molecule into its 30,000 ;molecular weight-active fragments was not detectable after inc...

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Hageman factor substrates. Human plasma prekallikrein: mechanism of activation by Hageman factor and participation in hageman factor-dependent fibrinolysis.

Two molecular forms of prekallikrein can be isolated from pooled normal human plasma. Their approximate molecular weights by sodium dodecyl sulfate-gel electrophoresis are 88,000 and 85,000. The two bands observed are shown to represent prekallikrein by functional, immunochemical, and structural criteria. Both forms are cleaved by activated Hageman factor, they appear to share antigenic determi...

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عنوان ژورنال:
  • Thrombosis et diathesis haemorrhagica

دوره 13  شماره 

صفحات  -

تاریخ انتشار 1965