2OCD

Crystal structure of L-asparaginase I from Vibrio cholerae O1 biovar eltor str. N16961

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7	291	2M Ammonium Acetate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K, pH 7.00

Crystal Properties
Matthews coefficient	Solvent content
2.54	51.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.235	α = 90
b = 117.838	β = 91.44
c = 121.431	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 315		2004-05-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID		APS	19-ID

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	40	97.4	0.131	10.3	3.8		55186

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	2.49	93.1		0.51	2.2	3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	THROUGHOUT	2.45	33.3	50838	50838	2739	97.4	0.179	0.176	0.246	RANDOM	15.51

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]
-0.14		0.12	0.26		-0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.056
r_dihedral_angle_4_deg	19.373
r_dihedral_angle_3_deg	18.026
r_dihedral_angle_1_deg	7.262
r_scangle_it	3.329
r_scbond_it	2.333
r_angle_refined_deg	1.822
r_mcangle_it	1.328
r_angle_other_deg	1.159
r_mcbond_it	1.065
r_nbd_refined	0.232
r_nbd_other	0.212
r_symmetry_hbond_refined	0.201
r_xyhbond_nbd_refined	0.192
r_nbtor_refined	0.189
r_symmetry_vdw_other	0.178
r_mcbond_other	0.151
r_symmetry_vdw_refined	0.125
r_chiral_restr	0.099
r_nbtor_other	0.093
r_bond_refined_d	0.02
r_xyhbond_nbd_other	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001
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	10089
Nucleic Acid Atoms
Solvent Atoms	524
Heterogen Atoms	22

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
SHARP	phasing