Analysis of the functional domain of tissue inhibitor of metallo-proteinases-2 (TIMP-2) was performed using limited proteolytic degradation with trypsin. This treatment generated a 13.5 kDa fragment which was purified and shown to consist of an uncleaved N-terminal region extending from residue 1 to residue 132. The fragment retains the ability to inhibit activated interstitial collagenase and to block the autocatalytic activation of procollagenase.
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DeClerck et al. (1993) studied this question.