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Amino acid sequences of Pce in various pneumococcal strains. The amino acid position numbering shown above the amino acid sequence is that used by Garau et al. [28]. The pce gene encodes a putative protein of 627 amino acids, including a 25-residue typical signal peptide (pink), followed by a 312-residue catalytic region (green), a 204-residue choline-binding domain (blue), and a carboxy-terminal tail of 85 amino acids (grey)
