4GBN

Crystal structure of aspart insulin at pH 6.5


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.52932 uL mother liquor (0.1 M MES monohydrate, pH 6.5, 1.6 M magnesium sulfate heptahydrate) + 2 uL protein (aspart insulin, 100 U/mL), VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
1.8934.99

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.71α = 90
b = 78.71β = 90
c = 37.04γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDOXFORD TITAN CCD2012-07-18MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SEALED TUBEOXFORD DIFFRACTION ENHANCE ULTRA

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
11.87239.35597.70.0527.81.768896889
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)
11.8721.9791.70.2720.2722.41.2955

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 REPLACEMENTTHROUGHOUTPDB ENTRY 1ZEH1.87239.355688833497.630.16640.16390.214RANDOM31.7913
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]
-3.54-3.547.08
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg42.665
r_dihedral_angle_3_deg17.608
r_dihedral_angle_4_deg8.609
r_dihedral_angle_1_deg7.685
r_angle_refined_deg2.024
r_angle_other_deg1.351
r_chiral_restr0.153
r_bond_refined_d0.02
r_gen_planes_refined0.009
r_bond_other_d0.004
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg42.665
r_dihedral_angle_3_deg17.608
r_dihedral_angle_4_deg8.609
r_dihedral_angle_1_deg7.685
r_angle_refined_deg2.024
r_angle_other_deg1.351
r_chiral_restr0.153
r_bond_refined_d0.02
r_gen_planes_refined0.009
r_bond_other_d0.004
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms803
Nucleic Acid Atoms
Solvent Atoms31
Heterogen Atoms20

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction