5BN1

Structure of Axe2-W215I, an acetyl xylan esterase from Geobacillus stearothermophilus

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	293	1.2 M K tartrate, 0.3 M NaCl, 0.1 M imidazole buffer pH 7.2

Crystal Properties
Matthews coefficient	Solvent content
3.24	62.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.88	α = 90
b = 108.88	β = 90
c = 216.12	γ = 90

Symmetry
Space Group	I 4 2 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	MARMOSAIC 225 mm CCD		2014-02-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.98	ESRF	BM14

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	1.6	30	100	0.079	16.7	12.1		85395

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	1.6	1.63	100		0.561	3.6	11.3

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	3w7v	1.6	30	81089	4272	99.9	0.14511	0.14399	0.16577	RANDOM	21.573

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]
0.79			0.79		-1.58

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.27
r_dihedral_angle_4_deg	18.494
r_dihedral_angle_3_deg	13.003
r_long_range_B_refined	7.826
r_long_range_B_other	7.826
r_dihedral_angle_1_deg	6.426
r_scangle_other	5.641
r_scbond_it	4.076
r_scbond_other	4.074
r_mcangle_it	2.696
r_mcangle_other	2.695
r_angle_refined_deg	2.67
r_mcbond_it	2.084
r_mcbond_other	2.076
r_angle_other_deg	1.131
r_chiral_restr	0.17
r_bond_refined_d	0.028
r_gen_planes_refined	0.014
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3456
Nucleic Acid Atoms
Solvent Atoms	555
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing