2EXK

Structure of the family43 beta-Xylosidase E187G from geobacillus stearothermophilus in complex with xylobiose

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.4	285	17% PEG 6000, 0.1M MES, pH 5.4, VAPOR DIFFUSION, SITTING DROP, temperature 285K

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 139.87	α = 90
b = 139.87	β = 90
c = 232.025	γ = 90

Symmetry
Space Group	P 43 21 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	CCD	MARRESEARCH		2005-05-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X13	0.8048	EMBL/DESY, HAMBURG	X13

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.2	40	99.5			117206	116620

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.23	97.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.2	2.23	117206	115793	5803	99.38	0.188	0.188	0.185	0.238	RANDOM	43.609

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]
-0.7			-0.7		1.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.09
r_dihedral_angle_4_deg	18.992
r_dihedral_angle_3_deg	15.658
r_dihedral_angle_1_deg	6.578
r_scangle_it	1.682
r_angle_refined_deg	1.34
r_scbond_it	1.05
r_mcangle_it	0.752
r_mcbond_it	0.43
r_nbtor_refined	0.309

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.09
r_dihedral_angle_4_deg	18.992
r_dihedral_angle_3_deg	15.658
r_dihedral_angle_1_deg	6.578
r_scangle_it	1.682
r_angle_refined_deg	1.34
r_scbond_it	1.05
r_mcangle_it	0.752
r_mcbond_it	0.43
r_nbtor_refined	0.309
r_nbd_refined	0.189
r_symmetry_vdw_refined	0.169
r_symmetry_hbond_refined	0.167
r_xyhbond_nbd_refined	0.142
r_metal_ion_refined	0.14
r_chiral_restr	0.103
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	17484
Nucleic Acid Atoms
Solvent Atoms	1091
Heterogen Atoms	140

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

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 R01GM157729.