X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.1
Details NA,K PHOSPHATE, PH 6.1, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 152.5 α = 90
b = 152.5 β = 90
c = 98.74 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2003-02-03
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25

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 30 99.8 -- 0.081 -- 7.0 -- 31308 -- 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 2.9 99.8 -- 0.295 -- 6.0 --

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
MAD 2.8 30.0 -- 1.0 -- 31308 1418 -- -- 0.212 0.212 0.249 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 44.2
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.95
c_bond_d 0.008
c_angle_deg 1.39
c_dihedral_angle_d 22.97
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.44
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5797
Nucleic Acid Atoms 0
Heterogen Atoms 47
Solvent Atoms 162

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SOLVE/RESOLVE V. 2.0 Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
SOLVE/RESOLVE version: V. 2.0 model building