3U01

Crystal structure of onconase double mutant C30A/C75A at 1.12 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5	293	30% PEG8000, 0.2 M lithium sulfate, 100 mM sodium acetate, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.84	33.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.288	α = 90
b = 38.664	β = 90
c = 69.514	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	AGILENT ATLAS CCD		2010-01-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SEALED TUBE	OXFORD DIFFRACTION ENHANCE ULTRA	1.54

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	1.12	34.757	97.5	0.084	7.5	2.9	34245	33823

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.12	1.15	83.9		0.344	0.46	1.8	1.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	PDB ENTRY 1ONC	1.12	34.757	32118	1705	98.77	0.13708	0.13643	0.14956	RANDOM	7.257

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]
			0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.157
r_dihedral_angle_3_deg	13.339
r_dihedral_angle_4_deg	10.819
r_dihedral_angle_1_deg	6.296
r_sphericity_free	3.287
r_sphericity_bonded	3.097
r_scangle_it	2.157
r_scbond_it	1.45
r_angle_refined_deg	1.272
r_mcangle_it	1.066
r_rigid_bond_restr	0.757
r_mcbond_it	0.668
r_chiral_restr	0.097
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	824
Nucleic Acid Atoms
Solvent Atoms	147
Heterogen Atoms	19

Software

Software
Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrysalisPro	data collection
CrysalisPro	data reduction