Stabilisation of purified human collagenase by site-directed mutagenesis.

Abstract

During purification, human fibroblast collagenase breaks down into two major forms, an N-terminal 22000/25000-Mr fragment and a C-terminal 27000-Mr fragment; the most likely mechanism being autolysis. The cleavage site has been identified (Pro269- Ile270) and in an attempt to obtain full-length human collagenase (i.e., Mr 42570), this cleavage site and… (More)

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