3G9C

Crystal structure of the product Bacillus anthracis glmS ribozyme

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	vapor diffusion, sitting drops	6.8	298	11% PEG 8000, 9% DMSO, 0.02M SODIUM CACODYLATE, 0.02M MAGNESIUM CHLORIDE, 0.15M POTASSIUM CHLORIDE, pH 6.8, vapor diffusion, sitting drops, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.586	α = 90
b = 229.827	β = 90.16
c = 101.75	γ = 90

Symmetry
Space Group	P 1 21 1

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 QUANTUM 315		2007-10-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.1	NSLS	X29A

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	2.7	50	95.6	0.138	13.198	6.5		59605

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)
	2.7	2.8	68.4		0.965		3.8	4238

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		THROUGHOUT	2.9	49.69	50025	2538	99.64	0.249	0.246	0.307	RANDOM	35.364

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]
-0.03		1.47	3.45		-3.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.5
r_dihedral_angle_3_deg	17.116
r_dihedral_angle_4_deg	14.121
r_dihedral_angle_1_deg	5.619
r_scangle_it	1.65
r_mcangle_it	1.489
r_angle_refined_deg	1.328
r_scbond_it	0.977
r_mcbond_it	0.943
r_angle_other_deg	0.836
r_symmetry_hbond_refined	0.341
r_nbtor_refined	0.225
r_mcbond_other	0.203
r_symmetry_vdw_other	0.202
r_nbd_other	0.201
r_xyhbond_nbd_refined	0.188
r_symmetry_vdw_refined	0.152
r_nbd_refined	0.151
r_metal_ion_refined	0.111
r_nbtor_other	0.077
r_chiral_restr	0.055
r_bond_refined_d	0.006
r_gen_planes_refined	0.004
r_bond_other_d	0.003
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2864
Nucleic Acid Atoms	12952
Solvent Atoms	21
Heterogen Atoms	19

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
MOLREP	phasing