See Also: variable region(medicine)
immunoglobulin variable region(medicine)
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variable region (medicine)


variable region -->
V region
<molecular biology> Those regions in the amino acid sequence of both the heavy and the light chains of immunoglobulins where there is considerable sequence variability from one immunoglobulin to other of the same class, in contrast to constant sequence (C) regions. The V regions are associated with the antigen binding areas. They contain hypervariable regions of particularly high sequence diversity.