Rapid and sensitive techniques for identification and analysis of 'reactive-centre' mutants of C1-inhibitor proteins contained in type II hereditary angio-oedema plasmas.

Abstract excerpt

Novel procedures for structural analysis of the 'reactive-centre' residues, particularly the P1 residue, of the dysfunctional C1-inhibitor proteins found in the plasmas of type II hereditary angio-oedema (HAE) patients are described. C1-inhibitor is adsorbed directly from plasma on to Sepharose-anti-(C1 inhibitor) beads. The P1 residue of C1 inhibitor is arginine and hence a potential cleavage site for trypsin....

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