1XWT

Structure Of A Cold-Adapted Family 8 Xylanase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	277	MPD, sodium phosphate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.605	α = 90
b = 91.62	β = 90
c = 98.016	γ = 90

Symmetry
Space Group	P 21 21 21

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		2004-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.81	EMBL/DESY, HAMBURG	X11

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	1.3	50	91.3			114864	104895

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.3	1.34	84.3

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	1.3	50	99620	99620	5309	91.42	0.12354	0.12354	0.1225	0.14302	RANDOM	11.008

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]
-0.15			0.34		-0.19

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.003
r_sphericity_free	3.434
r_scangle_it	3.067
r_sphericity_bonded	2.299
r_scbond_it	2.126
r_mcangle_it	1.602
r_angle_refined_deg	1.364
r_rigid_bond_restr	1.09
r_mcbond_it	1.043
r_angle_other_deg	1.004
r_symmetry_vdw_other	0.375
r_nbd_other	0.246
r_nbd_refined	0.243
r_symmetry_hbond_refined	0.185
r_xyhbond_nbd_refined	0.17
r_symmetry_vdw_refined	0.135
r_chiral_restr	0.095
r_nbtor_other	0.082
r_gen_planes_other	0.023
r_gen_planes_refined	0.016
r_bond_refined_d	0.012
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3313
Nucleic Acid Atoms
Solvent Atoms	616
Heterogen Atoms

Software

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