7ADR

CO bound as bridging ligand at the active site of vanadium nitrogenase VFe protein

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	Tris/HCl pH 7.5, magnesium chloride, ethylene glycol, PEG 8000, sodium dithionite

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.579	α = 84.11
b = 79.934	β = 72.42
c = 107.223	γ = 75.19

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS EIGER X 16M		2018-06-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	0.849205	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	48.45	88.1	0.998	10.6	7.6		1101498

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1	1.02			0.592

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	6FEA	1	48.45	1095802	5649	88.13	0.1019	0.1019	0.1169	RANDOM	14.169

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]
0.27	0.22	0.55	0.69	-0.17	-0.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.599
r_dihedral_angle_1_deg	20.256
r_dihedral_angle_4_deg	18.827
r_dihedral_angle_3_deg	12.25
r_rigid_bond_restr	8.779
r_angle_refined_deg	3.154
r_angle_other_deg	1.874
r_chiral_restr	0.493
r_bond_refined_d	0.023
r_gen_planes_refined	0.013

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.599
r_dihedral_angle_1_deg	20.256
r_dihedral_angle_4_deg	18.827
r_dihedral_angle_3_deg	12.25
r_rigid_bond_restr	8.779
r_angle_refined_deg	3.154
r_angle_other_deg	1.874
r_chiral_restr	0.493
r_bond_refined_d	0.023
r_gen_planes_refined	0.013
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16711
Nucleic Acid Atoms
Solvent Atoms	2671
Heterogen Atoms	184

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
REFMAC	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 R01GM133198.