Article
Can isotype switch modulate antigen-binding affinity and influence clonal selection?
1 Dec 2000
Abstract excerpt
Four different monoclonal Ig (MIg) (IgA1kappa, IgG1kappa, IgG2kappa and IgG4kappa) displaying anti-tubulin activity were detected in the serum from a lymphoma patient. The complete sequence of three of these MIg showed identical V(H) and V(L) domains and the presence of mutations compatible with an antigen-driven process. Surprisingly, despite complete homology in their variable domains, IgA1kappa, IgG1kappa, or...
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