4FG3

Crystal Structure Analysis of the Human Insulin


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.5293Hanging drop: 2 uL 0.1 M sodium phosphate, 10% w/v PEG 6K + 2 uL Human Insulin 100 U/mL (Humulin R, lot #A 405936). Cryo = mother liquor + 10% glycerol, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
1.8433.33

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 81.559α = 90
b = 81.559β = 90
c = 33.538γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDOXFORD TITAN CCD2012-02-02MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SEALED TUBEOXFORD DIFFRACTION ENHANCE ULTRA1.54056

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
1240.7832.60.0986.51.954875487
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
122.1131.60.4810.4810.91.5787

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.00140.78548548597.630.20140.19620.2519RANDOM29.1673
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
0.320.160.32-0.48
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.673
r_sphericity_free28.52
r_dihedral_angle_4_deg21.236
r_dihedral_angle_3_deg12.245
r_sphericity_bonded5.323
r_dihedral_angle_1_deg5.217
r_rigid_bond_restr0.836
r_angle_refined_deg0.755
r_angle_other_deg0.733
r_chiral_restr0.045
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.673
r_sphericity_free28.52
r_dihedral_angle_4_deg21.236
r_dihedral_angle_3_deg12.245
r_sphericity_bonded5.323
r_dihedral_angle_1_deg5.217
r_rigid_bond_restr0.836
r_angle_refined_deg0.755
r_angle_other_deg0.733
r_chiral_restr0.045
r_bond_refined_d0.004
r_gen_planes_refined0.002
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms808
Nucleic Acid Atoms
Solvent Atoms36
Heterogen Atoms10

Software

Software
Software NamePurpose
SCALAdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
CrysalisProdata reduction