3IG8

Saccharomyces cerevisiae glutamate cysteine ligase in complex with Mg2+, L-glutamate and ADP

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.8	291	12% PEG 400, pH 6.8, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3.57	65.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 117.849	α = 90
b = 117.849	β = 90
c = 164.444	γ = 90

Symmetry
Space Group	P 43 21 2

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 315		2008-12-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.9	APS	14-BM-C

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	2.69	50	94.7	0.096	19.4	7		30739

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	2.69	2.75	96		0.727	2.3	5.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	MOLECULAR REPLACEMENT	THROUGHOUT	2.69	33.9	27023	1869	94.05	0.19049	0.19049	0.18689	0.24189	RANDOM	43.268

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]
1.76			1.76		-3.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.481
r_dihedral_angle_3_deg	17.517
r_dihedral_angle_4_deg	17.18
r_dihedral_angle_1_deg	6.878
r_scangle_it	3.212
r_scbond_it	2.15
r_angle_refined_deg	1.878
r_mcangle_it	1.507
r_mcbond_it	0.848
r_nbtor_refined	0.324

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.481
r_dihedral_angle_3_deg	17.517
r_dihedral_angle_4_deg	17.18
r_dihedral_angle_1_deg	6.878
r_scangle_it	3.212
r_scbond_it	2.15
r_angle_refined_deg	1.878
r_mcangle_it	1.507
r_mcbond_it	0.848
r_nbtor_refined	0.324
r_nbd_refined	0.236
r_symmetry_hbond_refined	0.227
r_symmetry_vdw_refined	0.172
r_xyhbond_nbd_refined	0.164
r_chiral_restr	0.122
r_bond_refined_d	0.019
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5461
Nucleic Acid Atoms
Solvent Atoms	110
Heterogen Atoms	50

Software

Software
Software Name	Purpose
PHENIX	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.