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. Author manuscript; available in PMC: 2008 Oct 13.
Published in final edited form as: Biochemistry. 2006 Jan 24;45(3):793–800. doi: 10.1021/bi051558s

Table 3.

B-factors for Mg2+, F and H2O (W) in the Active Site of Complex (hNSE•Mg2•F2•Pi)2 Obtained in Refinements with F or W (H2O) in Positions 444 and 445. Isotropic approximation and CNS software were used for these tests.

Subunit A Subunit B Subunit A Subunit B
Mg (440) 9.54   8.43 9.92 8.41
Mg (441) 9.28   7.84 9.99 7.63
(444) F  9.50 F  8.36 W  7.15 W  6.78
(445) F  14.50 F  14.04 W  12.85 W  12.37
H2O (446) 11.04  9.60 10.88 9.59
H2O (447) 10.66  9.74 10.52 8.86
H2O (448) 10.05  8.12 10.01 8.12