X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8
Details CRYSTALS OF CAC(146-231) WERE GROWN AT 4C IN 8 MICROLITER SITTING DROPS CONTAINING A 1:1 MIXTURE OF PROTEIN SOLUTION (2.1 MM CA(151-231) IN 10 MM TRIS (PH 8.0) AND 2 MM 2-MERCAPTOETHANOL) AND RESERVOIR SOLUTION (2.0 M AMMONIUM SULFATE), vapor diffusion - sitting drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 60.48 α = 90
b = 60.48 β = 90
c = 59.69 γ = 90
Symmetry
Space Group I 41

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- COLLIMATOR 1997-07
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12B -- NSLS X12B

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
2.8 20 99.1 -- 0.044 -- -- -- 2681 -- 0.0 --
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)
2.8 2.85 100.0 -- 0.368 2.5 -- --

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 3.0 8.0 -- 0.0 -- 2677 -- 99.1 -- 0.355 0.355 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 43.44
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 556
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
X-PLOR model building version: 3.843
X-PLOR refinement version: 3.843
X-PLOR phasing version: 3.843