X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Batch Method
pH 6.8
Details BATCH METHOD, COMPOSITION OF CRYSTALLISATION SOLUTION 3.5 MG INSULIN + 0.5 ML 0.02M HCL + 0.05 ML 0.12M ZINC ACETATE + 0.25 ML 0.2M TRI-SODIUM CITRATE + 0.2 ML 2.5% (W/V) M-CRESOL IN ETHANOL + 60 MG NACL, pH 6.8, batch method

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 77.49 α = 90
b = 77.49 β = 90
c = 38.91 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-01-27
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
1.5 19.4 97.5 0.07 -- -- 7.5 -- 13601 -- -- 16.9
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)
1.5 1.53 54.6 0.169 -- -- -- --

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
-- 1.5 19.4 -- 0.0 -- 13601 -- 97.5 -- -- 0.159 0.193 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.1
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 16.6
p_mcangle_it 2.359
p_scbond_it 2.061
p_planar_d 0.036
p_singtor_nbd 0.169
p_mcbond_it 1.564
p_plane_restr 0.027
p_planar_tor 6.0
p_angle_d 0.036
p_chiral_restr 0.117
p_multtor_nbd 0.276
p_staggered_tor 12.9
p_scangle_it 2.987
p_bond_d 0.014
p_xyhbond_nbd 0.101
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 837
Nucleic Acid Atoms 0
Heterogen Atoms 52
Solvent Atoms 107

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
REFMAC refinement