3QXB

Crystal structure of a Putative Xylose isomerase (YP_426450.1) from RHODOSPIRILLUM RUBRUM ATCC 11170 at 1.90 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.1	277	0.2M NH4Acetate, 20.0% PEG-3350, No Buffer pH 7.1, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.14	42.63

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.188	α = 90
b = 94.903	β = 93.04
c = 173.197	γ = 90

Symmetry
Space Group	C 1 2 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	MARMOSAIC 325 mm CCD	double crystal monochromator	2009-07-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2		SSRL	BL9-2

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	1.9	29.683	99.8	0.102	0.102	8	2.9		96564			20.08

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)
	1.9	1.95	100		0.432	0.432	2.2	2.8	7107

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	SAD	THROUGHOUT	1.9	29.683	96562	4830	99.72	0.1519	0.1498	0.1916	RANDOM	27.6657

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]
0.18		-1.6	-0.92		0.58

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.518
r_dihedral_angle_4_deg	20.417
r_dihedral_angle_3_deg	12.892
r_dihedral_angle_1_deg	6.244
r_scangle_it	3.388
r_scbond_it	2.312
r_angle_refined_deg	1.468
r_mcangle_it	1.166
r_angle_other_deg	0.932
r_mcbond_it	0.696

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.518
r_dihedral_angle_4_deg	20.417
r_dihedral_angle_3_deg	12.892
r_dihedral_angle_1_deg	6.244
r_scangle_it	3.388
r_scbond_it	2.312
r_angle_refined_deg	1.468
r_mcangle_it	1.166
r_angle_other_deg	0.932
r_mcbond_it	0.696
r_mcbond_other	0.229
r_chiral_restr	0.088
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9445
Nucleic Acid Atoms
Solvent Atoms	972
Heterogen Atoms	89

Software

Software
Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SHELX	phasing
SHARP	phasing
SCALA	data scaling
REFMAC	refinement
MOSFLM	data reduction
autoSHARP	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.