X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details CRYSTALS WERE GROWN AT ROOM TEMPERATURE IN 0.1M TRIS-MALEATE BUFFER, PH 6.5 CONTAINING 2.9 M AMMONIUM SULPHATE AND 0.1 M NACL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 52 α = 90
b = 52 β = 90
c = 77.2 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1993-10
Diffraction Radiation
Monochromator Protocol
-- --
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
2.1 20 97.0 0.081 -- -- 5.0 -- 7178 -- 0.0 --

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
MR 2.1 20.0 -- 0.0 -- 7178 -- 97.0 -- -- -- -- --
RMS Deviations
Key Refinement Restraint Deviation
p_mcbond_it 3.4
p_planar_tor 3.0
p_singtor_nbd 0.21
p_angle_d 0.043
p_plane_restr 0.016
p_planar_d 0.05
p_mcangle_it 5.2
p_staggered_tor 19.6
p_scbond_it 5.9
p_scangle_it 9.5
p_multtor_nbd 0.272
p_xyhbond_nbd 0.212
p_transverse_tor 12.0
p_bond_d 0.021
p_chiral_restr 0.211
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.25
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 611
Nucleic Acid Atoms 0
Heterogen Atoms 16
Solvent Atoms 85

Software

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