7Y44

Re-refinement of damage free X-ray structure of bovine cytochrome c oxidase at 1.9 angstrom resolution

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH MODE	5.7	277	40mM sodium phosphate buffer, 0.2% decylmaltoside, 1% PEG 4000, 2% ethylene glycol

Crystal Properties
Matthews coefficient	Solvent content
4.06	69.69

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 182.6	α = 90
b = 204.51	β = 90
c = 178.29	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	RIGAKU SATURN A200		2012-06-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	FREE ELECTRON LASER	SACLA BEAMLINE BL3	1.241	SACLA	BL3

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	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	1.9	27.33	96.2	0.243	0.137	0.872	6.7	3.8		500669

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	2	95.1		0.408	0.232	2.1	3.6

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	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2DYR	1.9	27.312	1.36	498904	25141	96.03	0.1875	0.1854	0.2269

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	20.001
f_angle_d	1.691
f_chiral_restr	0.098
f_bond_d	0.018
f_plane_restr	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	28506
Nucleic Acid Atoms
Solvent Atoms	2375
Heterogen Atoms	3117

Software

Software
Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
SCALEPACK	data scaling
MOLREP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.