X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.8
Details CRYSTALLISATION IN BATCH, 10 MG B5 TYR INSULIN DISSOLVED IN 2 ML 0.02M HCL. TO THIS ADDED 0.1 ML 0.12M ZINC ACETATE, 1.04 ML 0.2 M TRI-SODIUM CITRATE, 0.4 ML 5.0% (AQ.) PHENOL AND 120 MG NACL. PH ADJUSTED TO 6.5-7.8 .

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 60.81 α = 90
b = 62.05 β = 110.4
c = 47.65 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 289
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU -- 1993-08-15
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU/MSC RU-H2R -- -- --

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 19.2 96.0 0.058 -- -- 2.5 -- 21525 -- -- 31.5
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)
2.0 2.1 87.6 0.224 -- 3.0 2.2 --

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 2.0 19.2 -- 0.0 21525 21525 -- 96.0 -- -- 0.191 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 35.0
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 12.2
p_staggered_tor 18.4
p_planar_tor 3.0
p_xyhbond_nbd 0.204
p_multtor_nbd 0.267
p_bond_d 0.011
p_angle_d 0.036
p_planar_d 0.035
p_mcbond_it 2.3
p_mcangle_it 3.3
p_scbond_it 5.6
p_scangle_it 7.0
p_plane_restr 0.016
p_chiral_restr 0.136
p_singtor_nbd 0.178
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2442
Nucleic Acid Atoms 0
Heterogen Atoms 52
Solvent Atoms 159

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
PROLSQ Structure Refinement
Software
Software Name Purpose
PROLSQ refinement