2CEV

ARGINASE FROM BACILLUS CALDEVELOX, NATIVE STRUCTURE AT PH 8.5

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		LOW RESOLUTION STRUCTURE OF A DIFFERENT CRYSTAL FORM

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5		HANGING DROP VAPOUR DIFFUSION, MIXING 2 UL PROTEIN WITH 2 UL RESERVOIR SOLUTION. PROTEIN SOLUTION 27 MG/ML PROTEIN, 10 MM MOPS,PH 7.5. RESERVOIR SOLUTION 27-30% MONOMETHYLPEG 5000, 10 MM MNCL2, 10 MM GUANIDINE HYDROCHLORIDE, IN 0.1 M BISTRISPROPANE/HCL, PH 8.5., VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.67	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.22	α = 90
b = 275.58	β = 90
c = 138.07	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	113	IMAGE PLATE	RIGAKU		1996-12-15	M	SINGLE WAVELENGTH

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

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	2.15	40	87.9	0.067	15.4	4.7		93307

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	2.15	2.3	63.2		0.271	3.1

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	LOW RESOLUTION STRUCTURE OF A DIFFERENT CRYSTAL FORM	2.15	6	87695	87695		87.9	0.195	0.238	RANDOM

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
x_angle_deg	1.42
x_bond_d	0.01
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	13608
Nucleic Acid Atoms
Solvent Atoms	669
Heterogen Atoms	36

Software

Software
Software Name	Purpose
AMoRE	phasing
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling