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Lee MH Verma V Maskos K Becherer JD Knäuper V Dodds P Amour A Murphy G 《FEBS letters》2002,520(1-3):102-106
Tumor necrosis factor-alpha converting enzyme (TACE) is an ADAM (a disintegrin and metalloproteinases) that comprises an active catalytic domain and several C-terminal domains. We compare the binding affinity and association rate constants of the N-terminal domain form of wild-type tissue inhibitor of metalloproteinase (TIMP-3; N-TIMP-3) and its mutants against full-length recombinant TACE and the truncated form of its catalytic domain. We show that the C-terminal domains of TACE substantially weaken the inhibitory action of N-TIMP-3. Further probing with hydroxamate inhibitors indicates that both forms of TACE have similar active site configurations. Our findings highlight the potential role of the C-terminal domains of ADAM proteinases in influencing TIMP interactions. 相似文献
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