1JAZ

Crystal Structure of Monoclinic Form of D90E Mutant of Escherichia coli Asparaginase II

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	PEG MME 550, MES, zinc sulfate, pH 6.5, 292 K, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.1	40.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.118	α = 90
b = 133.076	β = 108.78
c = 62.565	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	IMAGE PLATE	MARRESEARCH	Vertically focusing cylindrical pre-mirror	1999-03-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711	1.104	MAX II	I711

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	2.27	25	98.6	0.098	28.9	4.9	26057	26057		-3	36.4

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	2.27	2.35	87.3		0.143	6.2	2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	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	MONOMER A FROM NATIVE L-ASPARAGINASE II STRUCTURE - PDB CODE: 3ECA	2.27	10	-3	24392	24392	1301	99.5	0.1828	0.1828	0.1802	0.232	RANDOM	22.56

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]
-0.71		-1.44	0.73		-0.95

RMS Deviations
Key	Refinement Restraint Deviation
p_planar_d	4.396
p_scangle_it	3.199
p_scbond_it	2.062
p_angle_d	1.639
p_mcangle_it	1.199
p_mcbond_it	0.672
p_chiral_restr	0.1
p_bond_d	0.016
p_plane_restr	0.005
p_angle_deg
p_hb_or_metal_coord
p_singtor_nbd
p_multtor_nbd
p_xhyhbond_nbd
p_xyhbond_nbd
p_planar_tor
p_staggered_tor
p_orthonormal_tor
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4587
Nucleic Acid Atoms
Solvent Atoms	136
Heterogen Atoms	3

Software

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