4KO4 | pdb_00004ko4

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

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4KL8	PDB entry 4KL8

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	277	25% PEG 4000, 0.2M CaCl2, 0.1M Tris/HCl, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.25

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	1.7394	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	2	30	98.5	0.087	8.7	4	107173	105522			18.2

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	2	2.12	91.9		0.26	3.3	3	16976

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 4KL8	2	25	107143	100181	5315	98.79	0.14955	0.14837	0.1554	0.17188	0.1764	RANDOM	15.008

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]
-0.02			-0.84		0.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.604
r_dihedral_angle_4_deg	17.659
r_dihedral_angle_3_deg	11.749
r_dihedral_angle_1_deg	5.604
r_scangle_it	3.617
r_scbond_it	2.255
r_mcangle_it	1.513
r_angle_refined_deg	1.285
r_mcbond_it	0.887
r_chiral_restr	0.086
r_bond_refined_d	0.01
r_gen_planes_refined	0.006

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