19GS

Glutathione s-transferase p1-1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	hanging drop	6		CRYSTALLISATION PERFORMED USING THE HANGING DROP TECHNIQUE. 2 MICROL OF PROTEIN SOLUTION (8MG/ML) IN 10MM PHOSPHATE BUFFER PH7.0, 1MM EDTA AND 2MM BETA-MERCAPTOETHANOL WAS ADDED TO 2 MICROL OF RESERVOIR SOLUTION. THE RESERVOIR CONTAINED 20-25% AMMONIUM SULFATE, 30-60 MM DITHIOTHREITOL AND 100MM MORPHOLINOETHANESULFONIC ACID BUFFER PH5.4. DROPS WERE STREAK SEEDED AFTER 1 DAY USING A CAT'S WHISKER FROM CRYSTALS GROWN UNDER SIMILAR CONDITIONS. AFTER X DAYS, THE CRYSTAL WAS TRANSFERED TO ARTIFICIAL MOTHER LIQUOR WHICH LACKED DITHIOTHREITOL. SOLID BROMOSULFALEIN WAS SEEDED INTO THE DROP. SEVEN WEEKS LATER THE CRYSTALS WERE SUBJECTED TO X-RAY ANALYSIS., pH 6.0, hanging drop

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.742	α = 90
b = 89.984	β = 97.54
c = 68.842	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	IMAGE PLATE	MARRESEARCH		1997-11-26	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 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	1.9	40	93.3	0.06	14.3	2.42		35002		-3	16.9

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	1.9	1.97	87.4		0.273	3.5

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 5GSS	1.9	15	34659	1726	93.8	0.212	0.212	0.249	RANDOM	20.3

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	22.9
x_scangle_it	4.41
x_scbond_it	3.06
x_mcangle_it	2.37
x_mcbond_it	1.61
x_angle_deg	1.2
x_improper_angle_d	0.73
x_bond_d	0.008
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3262
Nucleic Acid Atoms
Solvent Atoms	315
Heterogen Atoms	92

Software

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