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Multiple partial alignment of HmsF of C. violaceum compared with PgaB of E. coli; IcaB of S. epidermidis; HmsF of Y. pestis and HmsF of B. pertussis. The critical residue to extracellular matrix formation in Y. pestis: D (aspartate), W (tryptophan) and H (histidine) are demarcated.
