Identification of human seminal plasma components that bind IgG2 variant.

Abstract excerpt

Human seminal plasma (hsp) contains soluble proteins capable of binding immunoglobulin (Ig) G. Two novel components with estimated molecular sizes of 90 and 21 kD interact specifically with a variant of IgG2 found in 20% of human sera tested. The common IgG2 present in human sera and other subclasses of IgG did not bind with the hsp components. The present findings shows that the interacting IgG2 is a variant and...

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