3WLJ

Crystal structure of barley beta-D-glucan glucohydrolase isoenzyme EXO1 in complex with 3-deoxy-glucose

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1X39	PDB ENTRY 1X39

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	277	75mM HEPES-NaOH pH7.0 buffer, 1.2% PEG 400, 1.7M ammonium sulphate , pH 7.00, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.55	65.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.816	α = 90
b = 100.816	β = 90
c = 181.646	γ = 90

Symmetry
Space Group	P 43 21 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	MARRESEARCH	RH COATED SI MIRROR	2005-11-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-ID-B	1.12714	APS	14-ID-B

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	1.67	34.18	99	0.052	57.8	13.3		101919

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	1.67	1.72	94.7		0.619	1.11	7.1

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	PDB ENTRY 1X39	1.67	34.18	101919	5362	98.96	0.16009	0.15879	0.18478	RANDOM	26.369

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]
0.3			0.3		-0.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.021
r_dihedral_angle_3_deg	13.357
r_dihedral_angle_4_deg	13.005
r_dihedral_angle_1_deg	5.983
r_rigid_bond_restr	5.169
r_scbond_it	4.696
r_sphericity_free	4.546
r_sphericity_bonded	4.463
r_scangle_it	4.193
r_mcangle_it	1.518
r_angle_refined_deg	1.408
r_mcbond_it	1.024
r_nbtor_refined	0.308
r_symmetry_vdw_refined	0.234
r_symmetry_hbond_refined	0.217
r_nbd_refined	0.2
r_xyhbond_nbd_refined	0.146
r_chiral_restr	0.098
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4566
Nucleic Acid Atoms
Solvent Atoms	830
Heterogen Atoms	217

Software

Software
Software Name	Purpose
CCP4	model building
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing