2EXH

Structure of the family43 beta-Xylosidase from geobacillus stearothermophilus

X-RAY DIFFRACTION

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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	46.26

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 140.027	α = 90
b = 140.027	β = 90
c = 231.599	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	IMAGE PLATE	MARRESEARCH		2005-07-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7B	0.8426	EMBL/DESY, HAMBURG	BW7B

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	1.88	40	99.3			188383	187065

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	1.88	1.91	90.2

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	1.88	40	188383	185702	9335	99.64	0.235	0.235	0.233	0.286	RANDOM	35.458

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]
-0.61			-0.61		1.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.123
r_dihedral_angle_4_deg	17.816
r_dihedral_angle_3_deg	14.842
r_dihedral_angle_1_deg	6.229
r_scangle_it	1.489
r_angle_refined_deg	1.299
r_scbond_it	0.97
r_mcangle_it	0.825
r_mcbond_it	0.475
r_nbtor_refined	0.308
r_nbd_refined	0.186
r_symmetry_vdw_refined	0.161
r_metal_ion_refined	0.153
r_symmetry_hbond_refined	0.138
r_xyhbond_nbd_refined	0.137
r_chiral_restr	0.096
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	17504
Nucleic Acid Atoms
Solvent Atoms	1831
Heterogen Atoms	64

Software

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