3MYR

Crystal structure of [NiFe] hydrogenase from Allochromatium vinosum in its Ni-A state

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1WUI	PDB ENTRY 1WUI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8	277	Imidazole, sodium citrate, pH 8.0, VAPOR DIFFUSION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.67	66.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 205.75	α = 90
b = 216.96	β = 90
c = 119.8	γ = 90

Symmetry
Space Group	P 21 21 2

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	MARMOSAIC 225 mm CCD	mirrors	2009-02-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06DA	1.00000	SLS	X06DA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.1	48.06	95	0.057	18.5	4.16	295408	295408

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)
	2.1	2.19	90.2		0.296	4.9	4.22

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	PDB ENTRY 1WUI	2.1	30	294160	294160	15482	100	0.13952	0.138	0.16811	RANDOM	29.902

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]
1.09			-1.63		0.54

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.683
r_dihedral_angle_4_deg	18.008
r_dihedral_angle_3_deg	16.55
r_dihedral_angle_1_deg	6.916
r_scangle_it	6.524
r_scbond_it	4.293
r_mcangle_it	2.262
r_angle_refined_deg	1.936
r_mcbond_it	1.355
r_chiral_restr	0.339
r_bond_refined_d	0.027
r_gen_planes_refined	0.015
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	25641
Nucleic Acid Atoms
Solvent Atoms	1925
Heterogen Atoms	146

Software

Software
Software Name	Purpose
REFMAC	refinement
CNS	refinement
XDS	data scaling
XDS	data reduction
XSCALE	data scaling
CNS	phasing