X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details DROPS WERE PREPARED BY MIXING 2 MICROLITERS OF PURIFIED DIMER AT 25MG/ML WITH AN EQUAL VOLUME OF BUFFER (30% W/V PEG-400, 1.0 M LITHIUM SULPHATE, AND 1 MM CALCIUM CHLORIDE, IN 0.1 M TRIS-HCL AT PH 7.5), WHICH WAS ALSO USED AS THE WELL BUFFER (1 ML).

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 68.27 α = 90
b = 68.27 β = 90
c = 60.83 γ = 120
Symmetry
Space Group P 6 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH BENT MIRROR 1996-06-24
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- EMBL/DESY, Hamburg X11

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
1.8 22.3 99.7 0.081 0.078 -- 10.6 -- 8153 -- -- 23.5
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)
1.8 1.9 100.0 0.338 0.325 2.3 10.8 --

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 1.8 22.0 -- 0.0 -- 7358 795 99.7 -- -- 0.24 0.3 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 32.2
Anisotropic B[1][1] -6.1
Anisotropic B[1][2] -5.1
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -9.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 23.9
RMS Deviations
Key Refinement Restraint Deviation
p_angle_d 0.034
p_singtor_nbd 0.19
p_mcbond_it 1.64
p_multtor_nbd 0.25
p_bond_d 0.016
p_transverse_tor 8.8
p_chiral_restr 0.15
p_planar_tor 4.7
p_special_tor 15.0
p_scangle_it 3.86
p_plane_restr 0.026
p_mcangle_it 2.38
p_xyhbond_nbd 0.09
p_planar_d 0.033
p_staggered_tor 16.9
p_scbond_it 2.57
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 481
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 55

Software

Software
Software Name Purpose
AMoRE phasing
REFMAC refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)