1F5V

STRUCTURE AND SITE-DIRECTED MUTAGENESIS OF A FLAVOPROTEIN FROM ESCHERICHIA COLI THAT REDUCES NITROCOMPOUNDS. ALTERATION OF PYRIDINE NUCLEOTIDE BINDING BY A SINGLE AMINO ACID SUBSTITUTION


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.5
Temperature 281.0
Details PEG 6000, MES, sodium hydroxide, PEG 400, dioxane, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 281.0K
Method Vapor Diffusion Sitting Drop
pH 6.5
Temperature 281.0
Details PEG 6000, MES, sodium hydroxide, PEG 400, dioxane, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 281.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.56 α = 75.79
b = 52.86 β = 60.71
c = 52.83 γ = 61.17
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
2 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE FUJI -- 1998-11-20
IMAGE PLATE RIGAKU RAXIS IIC -- --
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --
SYNCHROTRON PHOTON FACTORY BEAMLINE BL-6A -- Photon Factory BL-6A

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
-- 1.7 7.0 -- -- -- 42534 -- -- -- -- 0.189 0.206 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.011
x_angle_deg 1.69
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3774
Nucleic Acid Atoms 0
Heterogen Atoms 62
Solvent Atoms 349

Software

Software
Software Name Purpose
AMoRE phasing
X-PLOR refinement version: 3.1
CNS refinement
DENZO data reduction
SCALEPACK data scaling