. Author manuscript; available in PMC: 2008 Oct 13.

Published in final edited form as: J Struct Biol. 2006 Nov 3;158(1):122–128. doi: 10.1016/j.jsb.2006.10.025

Table 1.

Crystallographic statistics

Data collection
Spacegroup	P2₁
Unit Cell	51.03 Å, 129.56 Å, 88.96 Å, β=91.66°
Resolution	50.00-1.97 Å	(2.04-1.97)
R_sym	0.067	(0.411)
Redundancy	3.7	(3.7)
Completeness	99.2	(98.9)
I/σ(I)	17.1	(2.8)
Refinement
R_cryst	0.184	(0.240)
R_free	0.227	(0.290)
Protein atoms (#, <B>)	8781	29.1 Å²
GMPPNP atoms (#, <B>)	128	17.7 Å²
Potassium atoms (#, <B>)	2	29.7 Å²
Water molecules (#, <B>)	536	36.3 Å²
rms Bonds	0.011Å
rms Angles	1.486°

There are two Ffh:FtsY NG heterodimers in the asymmetric unit. Data in parentheses are for the high resolution shell. <B> is the mean isotropic temperature factor for the atom set.

R_sym = Σ|I_h−<I_h>|/ΣI_h, where <I_h> is the average intensity over symmetry equivalents

R_cryst = Σ|F_o−F_c|/ΣF_o. R_free is for 5% of the data omitted from the refinement.