2XOF

Ribonucleotide reductase Y122NO2Y modified R2 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	1AV8	PDB ENTRY 1AV8

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.9		VAPOR DIFFUSION USING 90% OF SATURATED NACL, PH 7.9

Crystal Properties
Matthews coefficient	Solvent content
3.41	59.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 137.103	α = 90
b = 137.103	β = 90
c = 108.973	γ = 120

Symmetry
Space Group	P 61

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	ADSC CCD		2010-01-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29		ESRF	ID29

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	2.2	80.29	99.9	0.12	9.59	3.68		59034		-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	2.2	2.22	99.8		0.54	2	3.62

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 1AV8	2.2	118.68	56017	2985	99.91	0.1934	0.19182	0.22352	RANDOM	31.856

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]
1.04	0.52		1.04		-1.56

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.779
r_dihedral_angle_3_deg	17.304
r_dihedral_angle_4_deg	16.527
r_dihedral_angle_1_deg	4.626
r_scangle_it	1.793
r_angle_refined_deg	1.123
r_scbond_it	1.08
r_mcangle_it	0.856
r_mcbond_it	0.479
r_nbtor_refined	0.296
r_nbd_refined	0.193
r_symmetry_vdw_refined	0.147
r_xyhbond_nbd_refined	0.14
r_metal_ion_refined	0.14
r_symmetry_hbond_refined	0.105
r_chiral_restr	0.081
r_bond_refined_d	0.008
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_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	5584
Nucleic Acid Atoms
Solvent Atoms	371
Heterogen Atoms	6

Software

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