He Action Spectrum of the Inhibition of Gala Cto - Z Ymase Production by Ultra Violet Light * by Paul

coagulate bovine plasma albumin, 'y-globulin and egg albumin to form opaque gels at room temperature and neutrality. The reaction with bovine plasma albumin is many times more rapid than with the other two proteins. Gels so formed rapidly dissolve in concentrated solutions of amides such as urea. The capacity of albumin to form this type of gel is decreased by partial acetylation of the albumin. The evidence indicates that mercaptan-induced gelation occurs through hydrogen bonding between the extended denatured protein molecules.