Fig. 4.
Multiple-sequence alignment of protein regions of molinate hydrolase and selected members of the metal-dependent hydrolase A subfamily (cd1292) of the amidohydrolase superfamily. Putative metal-binding residues, typically of a His-His-Lys-His-His-Asp motif, are boxed. C., Caulobacter; M., Microbacterium; So., Sorangium; Sh., Shewanella.