4QK0

Crystal structure of Ara127N-Se, a GH127 beta-L-arabinofuranosidase from Geobacillus Stearothermophilus T6

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	20% PEG3350, 1% Tryptone, 0.1 M HEPES sodium, pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.32	47.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 105.383	α = 90
b = 132.266	β = 113.06
c = 109.045	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	100	CCD	MARMOSAIC 225 mm CCD		2014-04-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.978	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	2.258	40	99.53	0.123	6.7	7.1	122372	121797	-3

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	2.258	2.29	94.23		3.2	6.8

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	SAD	THROUGHOUT	2.258	40	122372	121797	6452	99.53	0.15965	0.15965	0.15748	0.20048	RANDOM	34.756

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]
-2.02		-1.47	1.2		1.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.248
r_dihedral_angle_4_deg	16.562
r_dihedral_angle_3_deg	16.21
r_long_range_B_refined	8.748
r_long_range_B_other	8.7
r_scangle_other	6.518
r_dihedral_angle_1_deg	6.157
r_mcangle_it	4.813
r_mcangle_other	4.813
r_scbond_it	4.195
r_scbond_other	4.195
r_mcbond_it	3.222
r_mcbond_other	3.218
r_angle_refined_deg	1.645
r_angle_other_deg	1.28
r_chiral_restr	0.103
r_bond_refined_d	0.016
r_gen_planes_refined	0.011
r_bond_other_d	0.008
r_gen_planes_other	0.007
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	20588
Nucleic Acid Atoms
Solvent Atoms	1518
Heterogen Atoms

Software

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