2FRV

CRYSTAL STRUCTURE OF THE OXIDIZED FORM OF NI-FE HYDROGENASE


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.6
Details pH 6.6

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 # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1994-06
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID2 -- ESRF ID2

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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
2.54 29.36 92.5 0.066 -- -- 1.7 -- 174383 -- 4.0 7.3
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.54 2.84 87.4 0.151 -- 4.0 1.57 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.54 8.0 -- 0.0 174383 168740 8434 92.5 0.225 0.202 0.201 0.219 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 9.2
RMS Deviations
Key Refinement Restraint Deviation
p_scangle_it 3.05
p_planar_tor 2.6
p_singtor_nbd 0.203
p_xyhbond_nbd 0.181
p_mcangle_it 1.93
p_multtor_nbd 0.208
p_planar_d 0.057
p_chiral_restr 0.169
p_staggered_tor 21.3
p_angle_d 0.044
p_mcbond_it 1.16
p_transverse_tor 30.5
p_scbond_it 1.99
p_plane_restr 0.014
p_bond_d 0.016
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.27
Luzzati Resolution Cutoff (Low) 20.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6341
Nucleic Acid Atoms 0
Heterogen Atoms 223
Solvent Atoms 192

Software

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