4KL8

High-resolution structure of anaerobically purified Dm. baculatum [NiFeSe]-hydrogenase after crystallization under air

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	277	22-27% PEG 4000, 0.2M CaCl2, 0.1M Tris/HCl, under air, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.2	α = 90
b = 108.72	β = 90
c = 136.62	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		2010-09-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.9780	ESRF	BM30A

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	1.52	30	91.3	0.057	11.3	4.2	242003	226689			17.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.52	1.6	66.9		0.375	2.1	2.7	22885

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 1CC1	1.52	25	241973	215209	11463	93.68	0.12429	0.12179	0.17109	RANDOM	13.769

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]
0.3			-0.72		0.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.627
r_dihedral_angle_4_deg	17.536
r_dihedral_angle_3_deg	11.816
r_scangle_it	5.932
r_dihedral_angle_1_deg	5.663
r_scbond_it	4.352
r_mcangle_it	3.024
r_rigid_bond_restr	2.281
r_mcbond_it	2.128
r_angle_refined_deg	1.343

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.627
r_dihedral_angle_4_deg	17.536
r_dihedral_angle_3_deg	11.816
r_scangle_it	5.932
r_dihedral_angle_1_deg	5.663
r_scbond_it	4.352
r_mcangle_it	3.024
r_rigid_bond_restr	2.281
r_mcbond_it	2.128
r_angle_refined_deg	1.343
r_chiral_restr	0.091
r_bond_refined_d	0.012
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11944
Nucleic Acid Atoms
Solvent Atoms	1844
Heterogen Atoms	99

Software

Software
Software Name	Purpose
Xnemo	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling

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.