Abstract
A method was developed for the preparation of a proteolytic fragment of rabbit secretory immunoglobulin A (sIgA) which contains the variable region of the alpha-chain; this fragment is suitable for primary-sequence studies. The serologically defined subclasses of sIgA are shown to correlate partially with the nature of the binding of a constituent chain of sIgA, called secretory piece. Data are also presented on the relative resistance of sIgA to enzymic and reductive cleavage, compared with immunoglobulin G.
Subject
Cell Biology,Molecular Biology,Biochemistry
Cited by
4 articles.
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