2GWC

Crystal structure of plant glutamate cysteine ligase in complex with a transition state analogue

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	298	15% PEG 3350, 0.2 M magnesium acetate tetrahydrate, 0.1 M tricine, 0.01 M L-buthionine(S,R)sulfoximine, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.04	α = 90
b = 198.92	β = 99.66
c = 114.97	γ = 90

Symmetry
Space Group	P 1 21 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	ADSC QUANTUM 4		2005-07-18	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.9797, 0.9778, 0,.9737	ESRF	ID14-4

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	2.18	99.5	95.5	0.104	13.6	4.1		197271	-3	-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.18	2.27	89.9		0.457	2.3	2	40871

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.18	99.5	-3	197621	187310	9951	100	0.2	0.2	0.19787	0.24126	RANDOM	22.442

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]
-0.04		0.01	0.02		0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.273
r_dihedral_angle_4_deg	18.219
r_dihedral_angle_3_deg	15.721
r_dihedral_angle_1_deg	5.892
r_scangle_it	3.064
r_scbond_it	2.262
r_angle_refined_deg	1.479
r_mcbond_it	1.09
r_angle_other_deg	0.916
r_mcangle_it	0.88
r_mcbond_other	0.278
r_symmetry_vdw_other	0.23
r_symmetry_hbond_refined	0.221
r_symmetry_vdw_refined	0.219
r_nbd_refined	0.203
r_nbd_other	0.188
r_nbtor_refined	0.178
r_xyhbond_nbd_refined	0.155
r_nbtor_other	0.087
r_chiral_restr	0.083
r_metal_ion_refined	0.073
r_xyhbond_nbd_other	0.062
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	28002
Nucleic Acid Atoms
Solvent Atoms	1017
Heterogen Atoms	120

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
XDS	data scaling
SHARP	phasing