2XAZ

Ribonucleotide reductase Y730NO2Y and C439S modified R1 subunit of E. coli

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2X0X	PDB ENTRY 2X0X

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6		LITHIUM SULPHATE 1.5M, SODIUM CHLORIDE BUFFER PH 6.

Crystal Properties
Matthews coefficient	Solvent content
3.23	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 224.807	α = 90
b = 224.807	β = 90
c = 337.131	γ = 120

Symmetry
Space Group	H 3 2

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	MARRESEARCH		2009-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2		ESRF	ID23-2

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	2.6	84.21	96.6	0.09	10.69	3.72		96638		-3.7

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	2.6	2.62	97.7		0.58	2.06	3.69

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	PDB ENTRY 2X0X	2.6	169.031	2	96638	4825	96.405	0.199	0.1961	0.2462	RANDOM	44.616

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]
0.241	0.12		0.241		-0.361

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.547
r_dihedral_angle_3_deg	17.958
r_dihedral_angle_4_deg	16.744
r_dihedral_angle_1_deg	5.747
r_scangle_it	2.165
r_scbond_it	1.28
r_angle_refined_deg	1.23
r_mcangle_it	1.052
r_mcbond_it	0.578
r_nbtor_refined	0.305
r_symmetry_hbond_refined	0.245
r_nbd_refined	0.205
r_symmetry_vdw_refined	0.158
r_xyhbond_nbd_refined	0.15
r_chiral_restr	0.087
r_bond_refined_d	0.01
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	17795
Nucleic Acid Atoms
Solvent Atoms	349
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling