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Alignment of catalytic DHp-CA region of SrrB from various Staphylococcus species. (A) The phylogenetic tree was generated using the full-length SrrB sequence. The five Staphylococcus species containing conserved cysteine residues are in bold. (B) Sequence alignment of the catalytic DHp-CA region of SrrB showing the presence of the conserved cysteine residues. The two conserved cysteines are highlighted in yellow. The S. epidermidis sequence is shown for comparison.
