Carbohydrate as covalent crosslink in human inter‐α‐trypsin inhibitor: A novel plasma protein structure

Abstract
The primary structure of inter‐α‐trypsin inhibitor is partially elucidated, but controversy about the construction of the polypeptide backbone still exists. We present evidence suggesting that inter‐α‐trypsin inhibitor represents a novel plasma protein structure with two separate polypeptide chains covalently crosslinked only by carbohydrate (chondroitin sulphate)