X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.3
Details 0.05M CITRATE BUFFER, 19% AMMONIUM SULPHATE, pH 5.30

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 139.39 α = 90
b = 139.39 β = 90
c = 161.31 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 104
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2003-04-16
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LNLS BEAMLINE D03B-MX1 -- LNLS D03B-MX1

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
2.6 56.53 90.1 -- 0.099 -- 5.5 -- 16763 -- 2.0 --
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)
2.6 2.74 93.4 -- 0.375 1.9 5.3 --

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 2.6 7.0 -- 4.0 16705 15383 1538 89.8 -- 0.2 0.2 0.272 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 28.91
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.59
x_bond_d 0.013
x_angle_deg 1.893
x_dihedral_angle_d 25.82
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.29
Luzzati Resolution Cutoff (Low) 7.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2251
Nucleic Acid Atoms 0
Heterogen Atoms 34
Solvent Atoms 64

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
AMORE Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
AMORE model building
SCALA data reduction
MOSFLM data collection