|
|
||||||||
From the Department of Pathology, New York University School of Medicine, New York, New York 10016
Abstract
Recombination experiments were performed with H and L chains of guinea pig anti-DNP
1 and
2 immunoglobulins. The immunoglobulins were mildly reduced and alkylated and then exposed to guanidine HCl in order to dissociate their polypeptide chains. Recombination was allowed to occur as the guanidine was subsequently dialyzed away. Recombination of H chains with one another was found to be class-specific. On the other hand, the recombination of L chains with H chains was close to random (i.e., independent of class of origin), especially with antibodies obtained from individual animals. The results are consistent with the idea that during the immune response, clones of antibody-forming cells switch classes (CH genes) while retaining the specificity of the combining site (V genes).
Footnotes
1 This work was supported by Grants (AI-09738 and AI-08499) from the National Institutes of Health, United States Public Health Service.
2 M. E. L. and V. N. are Career Scientists of the Health Research Council of the City of New York under Contracts I-474 and I-558.
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |