2XCL

Nucleotide-bound Structures of Bacillus subtilis Glycinamide Ribonucleotide Synthetase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		30% PEG 4000, 0.1 M TRIS-HCL PH 8.5, 4.2 MM MGCL2, 1.8 MM AMP-PNP

Crystal Properties
Matthews coefficient	Solvent content
2.16	43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.89	α = 90
b = 84.65	β = 90
c = 85.18	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100		ADSC		1998-07-11	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-D		APS	14-BM-D

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	2.09	26.98	89.5	0.08	29.9	6.4		22361			17.4

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	2.09	2.17	50.5		0.28	4.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.1	26.98	20942	1766	84.8	0.201	0.201	0.26	RANDOM	29

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]
-4.96			6.36		-1.4

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.5
c_scangle_it	3.29
c_scbond_it	2.43
c_mcangle_it	2.05
c_mcbond_it	1.38
c_angle_deg	1.2
c_improper_angle_d	0.83
c_bond_d	0.009
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3164
Nucleic Acid Atoms
Solvent Atoms	150
Heterogen Atoms	33

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing