1USB

Rational design of a novel enzyme - efficient thioester hydrolysis enabled by the incorporation of a single His residue into human glutathione transferase A1-1

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8		0.1 M TRISHCL PH 7.8, 26 % PEG4000, 2 MM DITHIOTHREITOL

Crystal Properties
Matthews coefficient	Solvent content
2.3	40.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 98.906	α = 90
b = 92.05	β = 93.21
c = 51.272	γ = 90

Symmetry
Space Group	C 1 2 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	MARRESEARCH	BENT MIRROR	2003-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711		MAX II	I711

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	2.07	67.42	99	0.093	6.6541	5.02		28011			24.7

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	2.07	2.18	93.4		0.29	2.43	3.17

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	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 1GSD	2.07	40	28008	1411	99.6	0.192	0.189	0.245	RANDOM	27.79

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]
0.49		1.53	0.58		-0.9

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.488
r_scangle_it	4.007
r_scbond_it	2.479
r_mcangle_it	1.728
r_angle_refined_deg	1.603
r_angle_other_deg	1.026
r_mcbond_it	0.967
r_nbd_refined	0.244
r_nbd_other	0.243
r_metal_ion_refined	0.229
r_symmetry_hbond_refined	0.201
r_symmetry_vdw_refined	0.197
r_symmetry_vdw_other	0.196
r_xyhbond_nbd_refined	0.166
r_chiral_restr	0.165
r_nbtor_other	0.088
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
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	3547
Nucleic Acid Atoms
Solvent Atoms	259
Heterogen Atoms	44

Software

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