1CNF

STRUCTURAL STUDIES ON CORN NITRATE REDUCTASE: REFINED STRUCTURE OF THE CYTOCHROME B REDUCTASE FRAGMENT AT 2.5 ANGSTROMS, ITS ADP COMPLEX AND AN ACTIVE SITE MUTANT AND MODELING OF THE CYTOCHROME B DOMAIN


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 145.2 α = 90
b = 145.2 β = 90
c = 47.5 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline

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
-- -- 81.0 -- -- -- -- -- 8225 -- 1.0 --

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
-- 2.7 8.0 -- 1.0 -- 8225 -- -- -- 0.186 0.186 0.272 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 33.0
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 2.2
x_bond_d 0.014
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2074
Nucleic Acid Atoms 0
Heterogen Atoms 80
Solvent Atoms 0

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement
X-PLOR phasing