1H0O | pdb_00001h0o

Cobalt substitution of mouse R2 ribonucleotide reductase to model the reactive diferrous state

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1XSM	PDB ENTRY 1XSM

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.7		0.1 M NA-ACETATE BUFFER PH4.7, 1.2 M NACL, 7.5 MG/ML APO-R2 PROTEIN. CRYSTALS WERE MADE BY CO-CRYSTALLISATION (3.8 EQV. CO2+)., pH 4.70

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.9	α = 90
b = 106.57	β = 90
c = 91.62	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	100	CCD	MARRESEARCH		2001-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	30					22045			25.1

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1XSM	2.2	8	19953		90.5	0.235	0.235	0.23	0.282	0.28	RANDOM	45.6

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]
6.24			-1.7		-4.54

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	19.55
c_scangle_it	3.53
c_mcangle_it	2.73
c_scbond_it	2.34
c_mcbond_it	1.65
c_angle_deg	1.12
c_improper_angle_d	0.764
c_bond_d	0.01
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2380
Nucleic Acid Atoms
Solvent Atoms	60
Heterogen Atoms	1

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing