2OJW

Crystal structure of human glutamine synthetase in complex with ADP and phosphate

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2D3A	PDB ENTRY 2D3A

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5	277	10% Isopropanol, 200 mM NaCl, 100 mM HEPES, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K, pH 7.50

Crystal Properties
Matthews coefficient	Solvent content
2.41	49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 177.6	α = 90
b = 122.6	β = 130.6
c = 126.6	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	CCD	ADSC QUANTUM 4	FOCUSING: TOROIDAL MIRROR	2006-09-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.05	40	98.8	0.1205	0.14		3.8		125431

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.05	2.15	98.6		0.416	0.485		3.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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 2D3A	2.05	39.25	121373	121373	6388	100	0.162	0.159	0.212	RANDOM	11.84

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]
0.15		1.01	0.13		1.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.81
r_dihedral_angle_4_deg	17.345
r_dihedral_angle_3_deg	14.792
r_dihedral_angle_1_deg	12.756
r_scangle_it	3.051
r_scbond_it	2.203
r_angle_refined_deg	1.776
r_mcangle_it	1.301
r_mcbond_it	1.096
r_angle_other_deg	1.094
r_mcbond_other	0.244
r_symmetry_hbond_refined	0.234
r_nbd_other	0.204
r_nbd_refined	0.203
r_symmetry_vdw_other	0.195
r_xyhbond_nbd_refined	0.187
r_symmetry_vdw_refined	0.182
r_nbtor_refined	0.176
r_chiral_restr	0.118
r_nbtor_other	0.084
r_bond_refined_d	0.019
r_gen_planes_refined	0.009
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	14250
Nucleic Acid Atoms
Solvent Atoms	1390
Heterogen Atoms	221

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing