4JHL | pdb_00004jhl

Crystal Structure of of Axe2, an Acetylxylan 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	1.0 - 1.4M K/Na-tartarate, 0.3M NaCl, 0.1M imidazole buffer, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.22	61.85

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 110.301	α = 90
b = 110.301	β = 90
c = 213.088	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	bent collimating mirror and toroid	2012-09-12	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.954, 0.978	ESRF	BM14

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	1.7	29.88	98.72		8.2	71600	67992

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	1.7		98.72		8.3	8.2	71600

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.7	29.88	71600	67992	3608	98.72	0.133	0.131	0.1316	0.164	0.164	RANDOM	24.859

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]
1.19			1.19		-2.37

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.323
r_dihedral_angle_4_deg	16.545
r_dihedral_angle_3_deg	13.735
r_dihedral_angle_1_deg	6.597
r_angle_refined_deg	2.357
r_angle_other_deg	1.029
r_chiral_restr	0.15
r_bond_refined_d	0.025
r_gen_planes_refined	0.012
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3490
Nucleic Acid Atoms
Solvent Atoms	548
Heterogen Atoms	46

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHENIX	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing