20GS

GLUTATHIONE S-TRANSFERASE P1-1 COMPLEXED WITH CIBACRON BLUE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	vapor diffusion - hanging drop - streak seeding	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. SOLID CIBACRON BLUE WAS SEEDED INTO THE DROP. SIX WEEKS LATER THE CRYSTALS WERE SUBJECTED TO X-RAY ANALYSIS., pH 6.0, vapor diffusion - hanging drop - streak seeding

Crystal Properties
Matthews coefficient	Solvent content
2.6	52.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.176	α = 90
b = 90.69	β = 97.73
c = 68.755	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		1997-05-31	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	2.45	15	95.8	0.118	9.2	2.97		16729		-3	23.2

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)
	2.45	2.54	93.9		0.391	2.7

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	2.45	15	16727	817	95.8	0.229	0.229	0.28	RANDOM	25.4

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]
8.17		-2.02	0.07		-8.25

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	23.7
x_scangle_it	3.39
x_scbond_it	2.45
x_mcangle_it	2.36
x_mcbond_it	1.54
x_angle_deg	1.3
x_improper_angle_d	0.67
x_bond_d	0.009
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	101
Heterogen Atoms	169

Software

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