The Journal of Experimental Medicine
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The Journal of Experimental Medicine, Vol 110, 1-8, Copyright, 1959, by The Rockefeller Institute

ARTICLE

MACROGLOBULINEMIA : III. THE EFFECT OF MERCAPTOETHANOL ON THE ANTIGENIC STRUCTURE OF MACROGLOBULINS



Leonhard Korngold Ph.D.1 and Gerda van Leeuwen 1

1 From the Division of Experimental Pathology, Sloan-Kettering Institute for Cancer Research and Sloan-Kettering Division of the Cornell University Medical College, New York

The monomers obtained by treating gamma1-macroglobulins with mercaptoethanol have proved to be antigenically different from normal 7S 7gamma-globulin.

The depolymerization of the macroglobulins resulted in the loss of several antigenic determinants, although the monomers still cross-reacted with antisera against macroglobulins.

Reaggregation of the monomers occasionally resulted in the reconstitution of some or all of the antigenic determinants that were lost during depolymerization.

Repeated freezing and thawing of pathological macroglobulins in iodoacetate resulted in their complete antigenic destruction.

Repeated freezing and thawing of one of the monomers in excess iodoacetate resulted in the degradation to a protein antigenically indistinguishable from Bence Jones protein. The other two monomers studied were stable under these conditions.

 Submitted on March 19, 1959


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