4GRT

HUMAN GLUTATHIONE REDUCTASE A34E, R37W MUTANT, MIXED DISULFIDE BETWEEN TRYPANOTHIONE AND THE ENZYME

X-RAY DIFFRACTION

---

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8		0.57-0.90 M AMMONIUM SULFATE,100 MM POTASSIUM PHOSPHATE, PH 8.0, AND 0.5% 1-N-BETA-OCTYL-D-GLUCOPYRANOSIDE HANGING DROP VAPOR DIFFUSION. CRYSTALS WERE SOAKED IN ARTIFICIAL MOTHER LIQUOR AT PH 6.5 CONTAINING 420 MM OXIDIZED GLUTATHIONE, vapor diffusion - hanging drop

Crystal Properties
Matthews coefficient	Solvent content
2.73	54.99

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 119.77	α = 90
b = 84.98	β = 90
c = 63.32	γ = 58.15

Symmetry
Space Group	B 1 1 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	AREA DETECTOR	SIEMENS	MIRRORS	1993-05-21	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.8		86.6	0.105		1.5		12974		0.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.8	2.93	38.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	DIRECT BASED ON KNOWN MODEL	PDB ENTRY 1GRT	2.8	10	0.1	9794		71.7	0.189	0.189

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
x_dihedral_angle_d	25.49
x_angle_deg	1.79
x_improper_angle_d	1.77
x_bond_d	0.012
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3506
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	101

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
XDS	data scaling
X-PLOR	phasing