5BVH

CO-bound form of Selenium incorporated nitrogenase MoFe-protein (Av1-Se-CO) from A. vinelandii

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		291	PEG 8000, NaCl, Imidazole/Malate, Sodiumdithionite

Crystal Properties
Matthews coefficient	Solvent content
2.32	46.93

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.071	α = 90
b = 130.833	β = 110.64
c = 107.318	γ = 90

Symmetry
Space Group	P 1 21 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 PILATUS 6M		2015-04-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2	0.97918	SSRL	BL12-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (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	1.53	38.71	96.2	0.127	11.3	7.2		301848

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.53	1.61	96.1		0.795	2.2	7.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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		THROUGHOUT	1.53	100.43	286922	14889	96.07	0.14482	0.14405	0.15971	RANDOM	13.32

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]
0.42		0.03	-0.04		-0.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.708
r_dihedral_angle_4_deg	19.689
r_dihedral_angle_3_deg	12.765
r_dihedral_angle_1_deg	6.077
r_long_range_B_refined	3.014
r_long_range_B_other	2.75
r_angle_refined_deg	1.841
r_scangle_other	1.621
r_angle_other_deg	1.529
r_scbond_it	1.022
r_scbond_other	1.022
r_mcangle_it	0.946
r_mcangle_other	0.946
r_mcbond_it	0.59
r_mcbond_other	0.59
r_chiral_restr	0.118
r_bond_refined_d	0.014
r_gen_planes_refined	0.01
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	15883
Nucleic Acid Atoms
Solvent Atoms	1813
Heterogen Atoms	176

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
XDS	data scaling
Coot	model building