X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details CRYSTALS WERE GROWN FROM A PROTEIN CONCENTRATION OF 50 MG/ML IN 0.1 M NAAC BUFFER, PH 4.6, CONTAINING 10 MM DTT, 25 % (V/V) GLYCEROL AND WITH 12 % (W/V) PEG 8000 AS THE PRECIPITANT

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 89.49 α = 90
b = 89.49 β = 90
c = 207.69 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-10-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, HAMBURG BW7B

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
2.12 20 98.0 0.074 0.074 -- 5.11 -- 141380 -- -- --
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)
2.12 2.2 96.5 0.437 0.437 3.4 4.6 --

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
MAD 2.1 10.0 -- 0.0 -- 27951 448 98.5 -- 0.19 0.19 0.25 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 29.5
p_staggered_tor 14.9
p_planar_tor 4.5
p_multtor_nbd 0.233
p_bond_d 0.012
p_angle_d 0.036
p_planar_d 0.036
p_mcbond_it 1.4
p_mcangle_it 1.9
p_scbond_it 1.9
p_scangle_it 2.6
p_plane_restr 0.0124
p_chiral_restr 0.128
p_singtor_nbd 0.183
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2432
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 297

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement