2QK4

Human glycinamide ribonucleotide synthetase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.2	298	16% PEG 3350, 0.3M LiSO4, 100 mM Bis-Tris pH 5.2, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
3.21	61.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.28	α = 90
b = 79.81	β = 104.07
c = 113.87	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	mirrors	2007-04-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.93300	ESRF	ID14-2

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	20	99.2	0.049	22.15	5.6	44786	44786			55.7

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	2.45	2.5	91.7		0.341	3.94	3.4	2434

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 1GSO	2.45	19.98	42544	2240	100	0.17386	0.17137	0.22107	RANDOM	51.959

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.672
r_dihedral_angle_4_deg	18.507
r_dihedral_angle_3_deg	15.967
r_scangle_it	7.463
r_dihedral_angle_1_deg	6.215
r_scbond_it	5.386
r_mcangle_it	3.056
r_mcbond_it	1.824
r_angle_refined_deg	1.546
r_nbtor_refined	0.322
r_symmetry_hbond_refined	0.264
r_nbd_refined	0.214
r_symmetry_vdw_refined	0.207
r_xyhbond_nbd_refined	0.163
r_chiral_restr	0.098
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_refined
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	6262
Nucleic Acid Atoms
Solvent Atoms	111
Heterogen Atoms	98

Software

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