Effect of the IgM and IgA secretory tailpieces on polymerization and secretion of IgM and IgG

Abstract excerpt

Pentameric IgM and dimeric IgA both contain disulfide bonds between cysteines located in the secretory tailpieces of the heavy chains. To compare the influences of the mu and alpha tailpieces on the polymeric structure, we have replaced amino acids in the tailpiece of the human mu-chain with amino acids found in the corresponding positions in the human alpha tailpiece. We show that an IgM with an alpha tailpiece...

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