Table 2.

Interactions between ATP and coordinating residues^a.

Res 1	Res #	Atom	Res 2	Atom	Distance (Å) Wide-open state	Distance (Å) Nonexchanging-closed state
LYS	336	NZ	ATP	N7	3.3	3.2
SER	14	OG	ATP	O3G	2.4	2.6
SER	14	N	ATP	O3G	2.9	2.8
LYS	213	NZ	ATP	O3′	3.1	3.2
LYS	213	NZ	ATP	O2′	2.6	2.9
GLU	214	OE2	ATP	O2′	2.8	2.7
ASP	157	OD2	ATP	O3′	2.5
GLY	158	N	ATP	O1G	3.1
ASP	157	N	ATP	O1G		2.9
MET	16	N	ATP	O1B		2.8
GLY	15	N	ATP	O1B		2.9
LYS	18	NZ	ATP	O2B		2.8
LYS	18	NZ	ATP	O1A		2.8
GLY	302	N	ATP	O2A		2.8
Ca2+	377	Ca	ATP	O1B	2.6
Ca2+	377	Ca	ATP	O2B	2.3
MET	16	N	Ca2+	Ca	2.4
GLY	15	N	Ca2+	Ca	3.1
Mg2+	402	Mg	ATP	O2G		1.9
Mg2+	402	Mg	ATP	O2B		2.3

^aS-loop residues 11-16; H-loop residues 70-78; G-loop residues 154-161