2BTU

Crystal structure of Phosphoribosylformylglycinamidine cyclo-ligase from Bacillus Anthracis at 2.3A resolution.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8		HANGING DROP VAPOUR DIFFUSION, 17% PEG2K, 0.1M TRIS-HCL PH 8.0, 0.1M TMAO (TRIMETHYLAMINE-N-OXIDE)

Crystal Properties
Matthews coefficient	Solvent content
2.3	46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.49	α = 90
b = 89.49	β = 90
c = 88.117	γ = 90

Symmetry
Space Group	P 41

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC CCD		2004-11-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14		ESRF	BM14

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.31	25	93.3	0.06	20.4	4.1		28479

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.31	2.39	47.9		0.46	1.4	1.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	PDB ENTRY 1CLI	2.31	25	27092	1375	93.3	0.1825		0.2491	RANDOM

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
		4578.91

RMS Deviations
Key	Refinement Restraint Deviation
s_similar_adp_cmpnt	0.09
s_non_zero_chiral_vol	0.03
s_from_restr_planes	0.0246
s_zero_chiral_vol	0.022
s_angle_d	0.02
s_anti_bump_dis_restr	0.013
s_bond_d	0.006
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4418
Nucleic Acid Atoms
Solvent Atoms	166
Heterogen Atoms

Software

Software
Software Name	Purpose
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.