Amino acid sequence multiple alignments of decarboxylases catalytic domains from B. atrophaeus C89 (AADC), Bacillus thuringiensis serovar sotto str. T04001 (ZP 04126748), Muricauda ruestringensis DSM13258 (YP 004788433), Erysipelothrix rhusiopathiae str. Fujisawa (YP 004561607) and Blautia hansenii DSM20583 (ZP 05855305).
The pyridoxal 5′-phosphate binding pocket was indicated by black arrow. The catalytic residue was indicated by red arrow.