2D33

Crystal Structure of gamma-Glutamylcysteine Synthetase Complexed with Aluminum Fluoride

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	sodium formate, Tris-HCl, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
4.78	74.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 325.226	α = 90
b = 325.226	β = 90
c = 105.181	γ = 120

Symmetry
Space Group	H 3

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		2004-04-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	0.9000	SPring-8	BL41XU

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	2.6	49.7	99.98	0.096	6.2	8.2		127490			52.8

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)
	2.6	2.74	100		0.304	2.4	8	18611

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	1V4G	2.6	40	121059	6408		0.16356	0.16211	0.19116	RANDOM	40.111

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]
0.14	0.07		0.14		-0.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.892
r_dihedral_angle_4_deg	19.477
r_dihedral_angle_3_deg	16.143
r_dihedral_angle_1_deg	5.668
r_scangle_it	2.261
r_mcangle_it	2.136
r_scbond_it	1.659
r_angle_refined_deg	1.543
r_mcbond_it	1.393
r_nbtor_refined	0.331
r_nbd_refined	0.233
r_symmetry_vdw_refined	0.199
r_symmetry_hbond_refined	0.179
r_xyhbond_nbd_refined	0.163
r_chiral_restr	0.093
r_metal_ion_refined	0.086
r_bond_refined_d	0.014
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	15776
Nucleic Acid Atoms
Solvent Atoms	346
Heterogen Atoms	205

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
MOLREP	phasing