Crystal Structural and Functional Analysis of the Putative Dipeptidase from Pyrococcus horikoshii OT3

Table 5

Comparison of the active site coordination distances between Ph dpd and Zn-Ph dpd. The distances of Zn1 and Zn2 in Ph dpd were calculated after the superposition between atoms of the active site residues of Ph dpd and Zn-Phdpd.

Distances in Phdpd (Å)					Distances in Zn-Phdpd (Å)
Residues	Zn1	Zn2	W278	W279	Residues	Zn1	Zn2
Asp215 OD1	2.3		3.9		Asp212 OD1	2.0
Asp215 OD2	3.4		2.8		Asp212 OD2	2.6
Asp226 OD1		2.3		2.9	Asp223 OD1		2.0
Asp226 OD2	2.0			3.4	Asp223 OD2	2.1
His290 NE2		2.5		3.5	His287 NE2		2.1
Glu319 OE1		3.1		2.8	Glu316 OE1		3.2
Glu319 OE2		2.3		3.1	Glu316 OE2		2.2
Glu333 OE1	2.2			3.6	Glu330 OE1	2.0
Glu333 OE2		1.9		3.2	Glu330 OE2		2.1
Ile227 O	3.5				Ile224 O	4.2
Thr228 OG1	3.0				Thr225 OG1	3.5
W278	2.6	1.8		3.6	Zn1		3.2
W279	4.2	5.1