5LA0

The mechanism by which arabinoxylanases can recognise highly decorated xylans

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5AK1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		293.15	1 M ammonium sulphate, 0.1 M Bis- Tris, 1 % PEG 3350 pH 5.5

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.092	α = 90
b = 72.366	β = 90
c = 109.113	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	PIXEL	DECTRIS PILATUS 2M		2011-10-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.9173	Diamond	I04-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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	1.65	44.85	98.5	0.067	0.998	13	3.5		63523		1.5

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	1.65	1.68	99.4		0.651	1.6	3.6

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	5AK1	1.65	44.85	60345	3123	98.23	0.12459	0.12221	0.16975	RANDOM	19.594

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]
1.37			-0.9		-0.46

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	42.071
r_dihedral_angle_2_deg	32.774
r_dihedral_angle_4_deg	16.404
r_dihedral_angle_3_deg	11.908
r_sphericity_bonded	11.037
r_dihedral_angle_1_deg	6.247
r_long_range_B_refined	5.144
r_long_range_B_other	3.742
r_scangle_other	2.983
r_scbond_it	2.511
r_scbond_other	2.511
r_mcangle_other	2.211
r_mcangle_it	2.209
r_rigid_bond_restr	2.002
r_mcbond_it	1.732
r_mcbond_other	1.722
r_angle_refined_deg	1.564
r_angle_other_deg	1.022
r_chiral_restr	0.102
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_bond_other_d	0.003
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3712
Nucleic Acid Atoms
Solvent Atoms	579
Heterogen Atoms	28

Software

Software
Software Name	Purpose
REFMAC	refinement
Aimless	data scaling
MOLREP	phasing
XDS	data reduction