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GBS PilB protein sequence alignment. Amino acid sequences and alignment of NCTC10/84 PilB and the homologous pili subunit proteins SAG1407 and GBS14778 expressed by the two sequenced GBS strains, NEM316 and 2603 V/R, respectively. Residues colored in red are identical in all three strains, while blue residues indicate identity in only two of the three GBS strains and green residues share similarity but are not identical.
