2VUX

Human ribonucleotide reductase, subunit M2 B

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2UW2	PDB ENTRY 2UW2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		0.1M NACACODYLATE PH 6.5, 2.3M AMMONIUM SULFATE, 0.2M SODIUM CHLORIDE. CHYMOTRYPSIN WAS ADDED TO A RATIO CHYMOTRYPSIN:PROTEIN OF 1:100 PRIOR TO CRYSTALLISATION

Crystal Properties
Matthews coefficient	Solvent content
3.2	60

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.96	α = 90
b = 99.47	β = 90
c = 132.58	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	100	CCD	ADSC CCD	MIRRORS	2008-04-21	M	SINGLE WAVELENGTH

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

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	2.8	20	98.1	0.08	13.99	3.59		22880		2

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	2.8	2.9	99.4		0.66	2.81	3.68

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 2UW2	2.8	19.83	21049	1831	100	0.213	0.209	0.258	RANDOM	51.44

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]
0.09			0.18		-0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.721
r_dihedral_angle_3_deg	17.691
r_dihedral_angle_4_deg	15.894
r_dihedral_angle_1_deg	5.781
r_scangle_it	1.445
r_angle_refined_deg	1.138
r_scbond_it	0.935
r_angle_other_deg	0.837
r_mcangle_it	0.641
r_mcbond_it	0.545
r_symmetry_vdw_other	0.282
r_nbd_refined	0.214
r_nbtor_refined	0.191
r_nbd_other	0.173
r_symmetry_vdw_refined	0.173
r_symmetry_hbond_refined	0.12
r_xyhbond_nbd_refined	0.119
r_nbtor_other	0.087
r_chiral_restr	0.061
r_bond_refined_d	0.01
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_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	4360
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing