Experiment: 5VNU

Nonheme Iron Replacement in a Biosynthetic Nitric Oxide Reductase Model Performing O2 Reduction to Water: Mn-bound FeBMb

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		277	1.5 mM protein solution in 20 mM potassium phosphate pH 7 mixed 1:1 with well buffer (0.2 M sodium acetate trihydrate, 0.1 M sodium 2-(N-morpholino)ethansulfonate (MES) pH 6.5 and 30% w/v PEG 10,000)

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.785	α = 90
b = 48.422	β = 90
c = 78.45	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	RAYONIX MX325HE		2016-07-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL14-1	1.2	SSRL	BL14-1

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	1.58	50	99.2	55.85	4.7		21305

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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)	Mean Isotropic B
X-RAY DIFFRACTION		1.584	35.483	1.35	39730	1976	99.69	0.1962	0.1948	0.1961	0.2224	0.2235

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	21.355
f_angle_d	1.507
f_chiral_restr	0.041
f_bond_d	0.006
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1219
Nucleic Acid Atoms
Solvent Atoms	141
Heterogen Atoms	44

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling