... adimer. In this article, we also report on the cloning of the gene encoding the secreted CM from Yersiniapestis (*YpCM, y2 828), purification of the protein,investigation of the properties of the ... formed in the same manner as that of *MtCM.There is only 23% sequence identity over the alignedresidues. As in *MtCM, the active site has residuesmainly from the N-terminal half of the chain, ... for the low kcatand high Kmexhibited by MtCM is the absence of two of the substrate-binding residues found in the C-terminus of EcCM (Fig. 1). In contrast,*YpCM, in which all the catalytic...