X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.5
Details pH 4.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56 α = 90
b = 58.1 β = 90
c = 88.3 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-09
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ELLIOTT GX-13 -- -- --

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
2.3 100 96.9 0.059 -- -- 5.8 -- 12825 -- 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)
2.3 2.42 94.7 0.175 -- 4.1 5.7 --

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
SINGLE ISOMORPHOUS REPLACEMENT 2.3 100.0 -- 0.0 -- 12194 -- 96.9 -- -- 0.158 0.23 --
RMS Deviations
Key Refinement Restraint Deviation
t_gen_planes 0.01
t_angle_deg 2.0
t_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1979
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 91

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (ROTAVATA) Data Reduction (data scaling)
SHELX Structure Solution
SHELX, TNT Structure Refinement
Software
Software Name Purpose
TNT refinement
SHELX refinement
SHELX model building