Cleavage of caldesmon and calponin by calpain: substrate recognition is not dependent on calmodulin binding domains.

Abstract excerpt

The calmodulin binding proteins, caldesmon and calponin, are cleaved by both major isoforms of calpain in vitro. The patterns of fragments generated by each enzyme are essentially identical for a given substrate. Qualitatively, the cleavage pattern of each substrate is unchanged by the presence or absence of calmodulin suggesting that the interaction between calmodulin and these calmodulin-binding proteins does...

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