1HG0

X-ray structure of the complex between Erwinia chrysanthemi L-asparaginase and succinic acid

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.4		40%(W/V) AMMONIUM SULFATE, 2%(V/V) PEG400, 0.1M TRIS (PH 8.5), CROSSLINKING WITH 0.1% GLUTARALDEHYDE, TRANSFER TO AMMONIUM SULFATE-FREE, 30% PEG4000, CHANGE OF THE BUFFER TO 0.1M SODIUM ACETATE

Crystal Properties
Matthews coefficient	Solvent content
2.24	44.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 107.18	α = 90
b = 91.32	β = 92.04
c = 128.41	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	295	IMAGE PLATE	MARRESEARCH	COLLIMATOR	1998-08-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5478

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.9	30	92.4	0.109	8.3	2.5		91478		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	1.97	75.8		0.384	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	PREVIUOSLY PUBLISHED STRUCTURE OF ERWINIA CHRYSANTHEMI L-ASPARAGINSE (MILLER ET AL., FEBS LETT., 1993	1.9	10	2	79365	1561	82.1	0.171	0.171	0.199	RANDOM	18.2

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]
-2.413		-0.176	1.288		1.125

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.62
c_scangle_it	2.5
c_mcangle_it	2
c_scbond_it	2
c_mcbond_it	1.5
c_angle_deg	1.285
c_improper_angle_d	0.729
c_bond_d	0.0048
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9860
Nucleic Acid Atoms
Solvent Atoms	881
Heterogen Atoms	32

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling