X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.4
Details 0.65M TETRAETHYL AMMONIUM CHLORIDE (E4NCL) 8% PEG 8000 100MM KCL 2.5MM MNCL2 2.5MM ADP 2.5MM ORNITHINE 25MM HEPES PH 7.4. THE CRYSTAL WAS SOAKED INTO: 1.4M E4NCL 8% PEG 8000 250MM KCL 2.5MM MNCL2 2.5MM ADP 2.5MM ORNITHINE 25MM GLUTAMINE 25MM HEPES PH 7.4 7.5% ETHYLENE GLYCOL.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 143.8 α = 90
b = 167.7 β = 90
c = 323 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-07
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

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
2.1 30 90.0 0.059 0.059 -- 4.1 -- 404724 -- 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)
2.1 2.18 73.0 0.203 0.203 3.2 2.3 --

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 2.1 30.0 -- 0.0 404724 404724 -- 90.0 -- -- 0.179 -- --
RMS Deviations
Key Refinement Restraint Deviation
t_nbd 0.034
t_it 500.0
t_gen_planes 0.009
t_trig_c_planes 0.004
t_incorr_chiral_ct 0.0
t_dihedral_angle_d 17.6
t_angle_deg 2.61
t_bond_d 0.011
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 44220
Nucleic Acid Atoms 0
Heterogen Atoms 487
Solvent Atoms 4857

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
TNT Structure Refinement
Software
Software Name Purpose
TNT refinement
AMORE model building
SCALEPACK data reduction
DENZO data collection