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Alignment of the N-terminal region and metal-binding domains of CadA or ZntA from P. putida, P. aeruginosa (51), E. coli (48), S. maltophilia (1), S. aureus (42), B. firmus (19), and L. monocytogenes (27). Identical bases are shown as white letters on a dark background. Asterisks indicate identical residues among all seven proteins.
