6LBB

Crystal structure of barley exohydrolaseI W434A mutant in complex with 4I,4III,4V-S-trithiocellohexaose

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3WLI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	277	1.7 M ammonium sulfate, 75 mM HEPES-NaOH buffer, pH 7, containing 7.5 mM sodium acetate and 1.2% (w/v) PEG 400

Crystal Properties
Matthews coefficient	Solvent content
3.5	64.89

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.565	α = 90
b = 100.565	β = 90
c = 182.306	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	ADSC QUANTUM 210r	COLLIMATING MIRROR	2012-11-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX1	0.9537	Australian Synchrotron	MX1

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	1.8	88.06	99.8	0.067	43.2	24.1		82693

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	1.8	1.85			0.067

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	3WLI	1.8	46.24	82693	4367	99.78	0.1381	0.1368	0.1613	RANDOM	25.035

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]
0.73			0.73		-1.46

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.668
r_dihedral_angle_4_deg	16.075
r_dihedral_angle_3_deg	13.518
r_dihedral_angle_1_deg	6.612
r_angle_refined_deg	2.268
r_angle_other_deg	1.639
r_chiral_restr	0.138
r_bond_refined_d	0.024
r_gen_planes_refined	0.012
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.668
r_dihedral_angle_4_deg	16.075
r_dihedral_angle_3_deg	13.518
r_dihedral_angle_1_deg	6.612
r_angle_refined_deg	2.268
r_angle_other_deg	1.639
r_chiral_restr	0.138
r_bond_refined_d	0.024
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	4587
Nucleic Acid Atoms
Solvent Atoms	755
Heterogen Atoms	166

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.