2FRV

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
2.8	56.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 112.78	α = 90.03
b = 113.16	β = 90.02
c = 133.91	γ = 119.99

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	120	IMAGE PLATE	MARRESEARCH		1994-06-19	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID2		ESRF	ID2

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	2.54	29.36	92.5	0.066	7.5	1.7		174383		4	7.3

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)
	2.54	2.84	87.4		0.151	4	1.57

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	R-FREE	PDB ENTRY 1FRV, MOLECULE 1	2.54	8	174383	168740	8434	92.5	0.225	0.202	0.201	0.219	RANDOM	9.2

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	30.5
p_staggered_tor	21.3
p_scangle_it	3.05
p_planar_tor	2.6
p_scbond_it	1.99
p_mcangle_it	1.93
p_mcbond_it	1.16
p_multtor_nbd	0.208
p_singtor_nbd	0.203
p_xyhbond_nbd	0.181
p_chiral_restr	0.169
p_planar_d	0.057
p_angle_d	0.044
p_bond_d	0.016
p_plane_restr	0.014
p_angle_deg
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	6341
Nucleic Acid Atoms
Solvent Atoms	192
Heterogen Atoms	223

Software

Software
Software Name	Purpose
MOSFLM	data reduction
CCP4	data reduction
AMoRE	phasing
PROLSQ	refinement
CCP4	data scaling