2RKX

The 3D structure of chain D, cyclase subunit of imidazoleglycerol_evolvedcerolphosphate synthase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH UNDER OIL	7	292	20% PEG 3350, 0.1M Bis-Tris propane pH 8.5, 0.2M NaF, pH 7.0, MICROBATCH UNDER OIL, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
3.71	66.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.38	α = 90
b = 96.38	β = 90
c = 153.988	γ = 120

Symmetry
Space Group	P 61 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV++	Mirrors	2007-06-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.25	50	99.9	0.098	0.087	36.6	19.7	20784	20784

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.25	2.33	100		0.435	0.392	6.8	18.9	2025

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1THF	2.25	50	19746	19657	1066	99.55	0.20716	0.2057	0.23481	RANDOM	33.665

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]
0.06	0.03		0.06		-0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.467
r_dihedral_angle_4_deg	17.264
r_dihedral_angle_3_deg	14.81
r_dihedral_angle_1_deg	6.59
r_scangle_it	5.038
r_scbond_it	3.34
r_mcangle_it	2.016
r_angle_refined_deg	1.74
r_mcbond_it	1.29
r_nbtor_refined	0.303

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.467
r_dihedral_angle_4_deg	17.264
r_dihedral_angle_3_deg	14.81
r_dihedral_angle_1_deg	6.59
r_scangle_it	5.038
r_scbond_it	3.34
r_mcangle_it	2.016
r_angle_refined_deg	1.74
r_mcbond_it	1.29
r_nbtor_refined	0.303
r_symmetry_hbond_refined	0.209
r_nbd_refined	0.207
r_symmetry_vdw_refined	0.204
r_xyhbond_nbd_refined	0.152
r_chiral_restr	0.116
r_bond_refined_d	0.022
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1940
Nucleic Acid Atoms
Solvent Atoms	102
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.