7VOS

High-resolution neutron and X-ray joint refined structure of high-potential iron-sulfur protein in the oxidized state

X-RAY DIFFRACTION - NEUTRON DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.5	293	1.8M ammonium sulfate, 0.1M Na citrate buffer

Crystal Properties
Matthews coefficient	Solvent content
1.83	32.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.334	α = 90
b = 58.855	β = 90
c = 23.548	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 QUANTUM 315r		2014-06-10	M	SINGLE WAVELENGTH
2	1	neutron	100	DIFFRACTOMETER	iBIX		2014-05-13	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-5A	0.7500	Photon Factory	BL-5A
2	SPALLATION SOURCE	J-PARC MLF BEAMLINE BL-03	2.00-4.40	JPARC MLF	BL-03

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	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	0.66	50	96.3	0.059						45.4	7.4		117107			3.81
2	1.2	20	94.9	0.21						6	4.8		19669			3.81

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	0.66	0.67		0.272						4.5	4.8
2	1.2	1.24		0.4						2.1	2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	0.66	36.41		1.51		117020	5799	96.3		0.074	0.074	0.082
NEUTRON DIFFRACTION	MOLECULAR REPLACEMENT	1.2	15.07				19667		94.6		0.154	0.154	0.168

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	616
Nucleic Acid Atoms
Solvent Atoms	129
Heterogen Atoms	68

Software

Software
Software Name	Purpose
PHENIX	refinement
SCALA	data scaling
MOLREP	phasing
HKL-2000	data collection

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 R01GM133198.