X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 48.4 α = 90
b = 56.6 β = 94.4
c = 93.7 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1994-10-04
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C

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
-- -- 93.7 0.068 -- -- 6.6 -- 32129 -- 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
-- 2.0 20.0 -- 2.0 -- 27821 -- -- -- 0.218 0.218 0.278 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.94
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.561
x_bond_d 0.012
x_angle_deg 1.597
x_dihedral_angle_d 23.46
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3094
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 161

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building