1FRV

CRYSTAL STRUCTURE OF THE OXIDIZED FORM OF NI-FE HYDROGENASE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.6		pH 6.6

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.6	α = 89.8
b = 93.9	β = 102.9
c = 69.2	γ = 90.8

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE			1992-09-23	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LURE BEAMLINE DW32		LURE	DW32

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	2.85	23.5	85.5	0.086		3.7		31053

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)
	2.85	3	47.6		0.207		1.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MIR WITH AVERAGING	2.85	8	29660		85.3			19

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
p_transverse_tor	34.4
p_staggered_tor	25.3
p_planar_tor	7.9
p_angle_deg	3.4
p_scangle_it	2.07
p_mcangle_it	1.54
p_scbond_it	1.28
p_mcbond_it	0.9
p_multtor_nbd	0.271
p_xyhbond_nbd	0.231
p_singtor_nbd	0.213
p_chiral_restr	0.169
p_planar_d	0.066
p_angle_d	0.032
p_bond_d	0.012
p_plane_restr	0.01
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	12288
Nucleic Acid Atoms
Solvent Atoms	22
Heterogen Atoms	56

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALKB/KBAPLY	data reduction
X-PLOR	model building
PROLSQ	refinement
X-PLOR	refinement
BIOMOL	data scaling
X-PLOR	phasing