Table 2.

Residues within 5 Å of the Nɛ group of the catalytic lysine (shown in bold)

A	B	C	D
LysH93	LysH93	Lys165	Lys229
SerH35	HisH35	Tyr43	Ala31
ValH37	ValH37	Tyr137	Ile77
TrpH47	TrpH47	Thr167	Lys146
TyrH95	TyrH91	Gly189	Glu187
TrpH103	Thr H100d	Ile206	Leu270
PheL98	TrpH103		Ser300

A, aldolase catalytic antibody Fab′ 33F12 [PDB ID code 1AXT (2)]; B, homology model of aldolase antibody 40F12; C, molecule 4 of N-acetylneuraminate lyase [PDB ID code 1NAL (17)]; D, molecule D of fructose 1, 6-bisphosphate aldolase from rabbit muscle [PDB ID code 1ADO (19)].