X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN WAS CRYSTALLIZED FROM 28% PEG 2000, 0.2 M CACL2, 0.1 M TRIS-HCL, PH=7.5, 1MM NAD+, 1% ACETONE, 277 K.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 66.7 α = 90
b = 53.5 β = 107.1
c = 70.7 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 290
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH COLLIMATOR 1997-02-01
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE MACSCIENCE -- -- --

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
2.2 99 100.0 0.086 -- -- 3.0 -- 25664 -- -3.0 16.5
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)
2.16 2.24 100.0 0.27 -- -- 3.0 --

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
MOLECULAR REPLACEMENT 2.2 8.0 -- 0.0 -- 22665 -- -- -- -- 0.198 0.258 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 24.9
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3924
Nucleic Acid Atoms 0
Heterogen Atoms 96
Solvent Atoms 130

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR, AMORE, CCP4, O, MAIN, RAVE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
RAVE model building
MAIN model building
O model building
CCP4 model building
AMORE model building
REFMAC model building
XPLOR model building