Fig. 4From: Mineralization of the herbicide swep by a two-strain consortium and characterization of a new amidase for hydrolyzing swepAlignment of amino acid sequences of Ppa and other 5 biochemically characterized amidases from GenBank. Identical amino acid residues are marked in black; similar residues are marked in pink. The amino acid residue sits of Ppa that were mutant by error-PCR are marked by red boxsBack to article page