Table 3.

Comparison of critical amino acid residues that are probably involved in nicotinamide binding in PHBH with respective residues of StyA and PqsL [12,151].

Enzyme	PDB ID	1	2	3	4	5	6	7	8
PqsL	2X3N	Q36	R41	I43	G45	I163	A164	R168	G275
SMOA	3IHM	D33	Y39	R43	N46	G144	K145	G149	V274
PHBH	1PBE	R33	Y38	R42	R44	F161	H162	R166	R269