1GWC

The structure of a tau class glutathione S-transferase from wheat, active in herbicide detoxification

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5		SITTING DROP METHOD WITH 1 MICROLITRE PROTEIN (10 MG/ML) AND 1 MICROLITRE WELL SOLUTION (1.1-1.5 M AMMONIUM SULPHATE, 0.2M LITHIUM SULPHATE 0.1M TRIS HCL PH 7.5 WITH 5MM S-HEXYLGLUTATHIONE)

Crystal Properties
Matthews coefficient	Solvent content
3.4	63

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 87.982	α = 90
b = 152.389	β = 90
c = 146.772	γ = 90

Symmetry
Space Group	C 2 2 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	CCD	MARRESEARCH	ELLIPSOIDAL MIRROR	1999-04-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID13		ESRF	ID13

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	2.25	53	95.4	0.119	11	3		44559

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	2.25	2.3	80		0.35	3	2

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	1EEM	2.25	30	2150	2178	90	0.159	0.157	0.211	RANDOM

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	6.282
r_scbond_it	3.792
r_mcangle_it	2.427
r_angle_other_deg	2.35
r_dihedral_angle_3_deg	1.415
r_mcbond_it	1.307
r_symmetry_vdw_refined	0.377
r_xyhbond_nbd_refined	0.259
r_nbd_refined	0.248
r_symmetry_vdw_other	0.239
r_symmetry_hbond_refined	0.23
r_nbd_other	0.218
r_xyhbond_nbd_other	0.217
r_chiral_restr	0.125
r_nbtor_other	0.098
r_bond_refined_d	0.025
r_gen_planes_refined	0.01
r_gen_planes_other	0.003
r_bond_other_d	0.001
r_angle_refined_deg
r_dihedral_angle_1_deg
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_metal_ion_refined
r_metal_ion_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
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5071
Nucleic Acid Atoms
Solvent Atoms	711
Heterogen Atoms	93

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
EPMR	phasing