X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.4
Temperature 277.0
Details CRYSTALS WERE GROWN FROM HANGING DROPS. THE INITIAL DROP CONTAINING 16MG/ML PROTEIN, A 10X EXCESS OF NAD, 5MM TRIFLUOROETHANOL AND 5% V/V OF PEG400 IN 50MM TRIS-HCL PH 8.4 WERE EQUILIBRATED AT 4 DEGREES C OVER WELLS OF SIMILAR COMPOSITION CONTAINING 15-17% PEG400., vapor diffusion - hanging drop, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.82 α = 103.1
b = 44.58 β = 87.59
c = 93.28 γ = 70.55
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II MONOCHROMATOR 1995-09-17
Diffraction Radiation
Monochromator Protocol
NI FILTER --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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 99 85.2 0.064 0.064 -- 1.83 -- 43756 -- 2.0 --
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)
2.0 2.07 64.6 0.31 0.31 1.3 1.6 --

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 2.0 10.0 -- 2.0 -- 41054 4128 67.6 -- 0.203 0.203 0.269 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.47
x_bond_d 0.009
x_angle_deg 1.85
x_dihedral_angle_d 24.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5576
Nucleic Acid Atoms 0
Heterogen Atoms 104
Solvent Atoms 116

Software

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