2F8Q

An alkali thermostable F/10 xylanase from alkalophilic Bacillus sp. NG-27

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HIZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8.5	273	0.1M NaCl, 0.01M MgCl2, 0.1M Tris pH 8.5 and 18% PEG 8000, VAPOR DIFFUSION, temperature 273K

Crystal Properties
Matthews coefficient	Solvent content
2.89	57.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 174.505	α = 90
b = 54.738	β = 131.21
c = 131.497	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	IMAGE PLATE	MARRESEARCH		2005-03-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	20	96.8			47793	46129			25

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	2.28	86

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	1HIZ	2.2	20	46128	2297	96.6	0.197	0.197	0.235	RANDOM	29.9

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]
1.37		4.59	-3.73		2.36

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.5
c_scangle_it	2.259
c_scbond_it	1.678
c_mcangle_it	1.635
c_angle_deg	1.2
c_mcbond_it	1.115
c_improper_angle_d	0.75
c_bond_d	0.005
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5704
Nucleic Acid Atoms
Solvent Atoms	752
Heterogen Atoms	2

Software

Software
Software Name	Purpose
CNS	refinement
MAR345	data collection
SCALEPACK	data scaling
AMoRE	phasing