1GOM

Thermostable xylanase I from Thermoascus aurantiacus- Crystal form I

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7		HANGING DROPS CONTAINING 1:1 RATIO OF 20 MG/ML PROTEIN SOLUTION AND RESERVOIR SOLUTION (12 % TO 25 % PEG 6,000)., pH 7.00

Crystal Properties
Matthews coefficient	Solvent content
2.03	34.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.039	α = 90
b = 68.302	β = 113.87
c = 41.44	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	AREA DETECTOR	MULTIWIRE XENTRONICS			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	SIEMENS

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.92	33.33	81.6	0.071		4.4		15469

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.92	2.05	35		0.16		1.7

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	PDB ENTRY 2EXO	1.92	33.3	15469	770	77.5	0.147	0.147	0.191	FREER FLAG (CCP4)	10.47

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]
-2.226		-0.9	0.122		2.104

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.7
c_scangle_it	4.561
c_scbond_it	3.12
c_mcangle_it	2.356
c_mcbond_it	1.759
c_angle_deg	1.48
c_improper_angle_d	0.93
c_bond_d	0.006
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	2312
Nucleic Acid Atoms
Solvent Atoms	186
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
XENGEN	data reduction
XENGEN	data scaling
AMoRE	phasing