“…Nagano (2005) analyzed the catalytic mechanisms of 270 enzymes (mainly hydrolases and transferases) from 131 superfamilies, which are manually compiled in the enzyme reaction database, EzCatDB. Analysis of the enzyme reactions has revealed several analogous reactions that are observed in non-homologous enzymes (Nagano et al , 2007). EzCatDB also provides a hierarchic classification of enzyme reactions, RLCP, which clusters the same reaction types together based on basic Reaction (R), Ligand group involved in catalysis (L), type of Catalytic mechanism (C), and residue/cofactors located on Proteins (P) (Nagano, 2005).…”