2GEZ

Crystal structure of potassium-independent plant asparaginase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	292	20% PEG 4000, 100 mM HEPES, 200 mM MgCl2, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292.0K

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.68	α = 100.6
b = 60.2	β = 92.9
c = 114.63	γ = 113.4

Symmetry
Space Group	P 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	MARRESEARCH		2004-03-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.81	EMBL/DESY, HAMBURG	X11

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	25	99	0.073	14.3	2.8	34621	34621		-3	40.9

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	2.6	2.69	96.9		0.152	6.1	2.5	3371

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1K2X	2.6	25	34621	32880	1741	98.9	0.192	0.192	0.189	0.254	RANDOM	25.11

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]
-1.13	1.3	0.02	4.16	0.19	-1.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.956
r_scangle_it	2.538
r_angle_refined_deg	1.584
r_scbond_it	1.479
r_mcangle_it	0.879
r_mcbond_it	0.477
r_nbd_refined	0.225
r_nbtor_refined	0.178
r_xyhbond_nbd_refined	0.157
r_chiral_restr	0.085
r_metal_ion_refined	0.066
r_bond_refined_d	0.015
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8693
Nucleic Acid Atoms
Solvent Atoms	112
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing