4ACS

Crystal structure of mutant GST A2-2 with enhanced catalytic efficiency with azathioprine

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2WJU	PDB ENTRY 2WJU

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8		CRYSTALS WERE GROWN BY HANING DROP METHOD BY MIXING EQUAL VOLUMES (4 UL) OF PROTEIN (10 MG/ML)AND GLUTATHIONE S-CONJUGATE (5 MM) MIXTURE AND RESERVOIR SOLUTION CONTAINING 9-14% PEG 4000 AND 2 MM DTT IN 100 MM TRIS-HCL (PH 7.8) WITH ADDITIONAL OCTYL D-BETA- GLUCOPYRANOSIDE TO A FINAL CONCENTRATION OF 0.1% (W/V)

Crystal Properties
Matthews coefficient	Solvent content
2.6	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.66	α = 90
b = 94.8	β = 92.77
c = 113.72	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			2010-07-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF		ESRF	ID14-2

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	2.1	38	93	0.12	5.1	3.2		55710		2.6	13

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	2.1	2.2	77		0.29	2.6	2.9

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 2WJU	2.1	40	52867	2820	92.39	0.26425	0.26117	0.32107	RANDOM	16.155

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]
3.5		1.78	-1.59		-1.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.677
r_dihedral_angle_3_deg	19.135
r_dihedral_angle_4_deg	17.179
r_dihedral_angle_1_deg	6.557
r_angle_refined_deg	1.575
r_chiral_restr	0.106
r_bond_refined_d	0.01
r_gen_planes_refined	0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_mcbond_it
r_mcbond_other
r_mcangle_it
r_mcangle_other
r_scbond_it
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7070
Nucleic Acid Atoms
Solvent Atoms	515
Heterogen Atoms	80

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing