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Alignment of the amino acid sequence of E. coli AbgB and AbgA, and Ps. CPG2. Ps. CPG2 and each subunit of E. coli PGH were aligned using UniProt. The signal peptide is indicated by wavy underlining at the N-terminus of CPG2. Identical amino acid residues are indicated by a star (*), strongly similar residues are indicated by a colon (:), and weakly similar groups are indicated by a period (.). The residues associated with subunit interactions in CPG2 are underlined.
