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. 1969 Feb 1;129(2):315-31.
doi: 10.1084/jem.129.2.315.

The inhibition of plasmin, plasma kallikrein, plasma permeability factor, and the C'1r subcomponent of the first component of complement by serum C'1 esterase inhibitor

O D Ratnoff, J Pensky, D Ogston, G B Naff

The inhibition of plasmin, plasma kallikrein, plasma permeability factor, and the C'1r subcomponent of the first component of complement by serum C'1 esterase inhibitor

O D Ratnoff et al. J Exp Med. .

Abstract

The fraction of human serum designated as C'1 esterase inhibitor is known to inhibit the action of C'1 esterase, a plasma kallikrein, and PF/Dil, an enzyme in plasma enhancing cutaneous vascular permeability. In the present study, C'1 esterase inhibitor has been found to block the actions of plasmin and the C'1r subcomponent of the first component of complement, and to retard the generation of PF/Dil. No inhibition of blood clotting or of the generation of plasmin was demonstrable.

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