8ONQ

Structure of the amyloid-forming peptide Ac-EFIAWL from human GLP-1


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelOtherIdeal beta-strands

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1EVAPORATION, RECRYSTALLIZATION310Ac-EFIAWL was dissolved in 0.016 mg/ml concentration in 0.1M citrate, pH 4.0 and incubated at 310K.

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 9.536α = 90
b = 42.631β = 95.68
c = 11.197γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELRIGAKU HyPix-6000HE2023-01-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU PhotonJet-R1.54184

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Rrim I (All)CC (Half)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
11.510.7897.460.1350.9956.2314197.05
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Rrim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.51.5593.290.6320.6991.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.510.781.4141014096.840.15360.15110.17377.89
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d18.4295
f_angle_d0.9406
f_chiral_restr0.0869
f_bond_d0.0088
f_plane_restr0.0052
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms112
Nucleic Acid Atoms
Solvent Atoms2
Heterogen Atoms6

Software

Software
Software NamePurpose
PHENIXrefinement
CrysalisProdata reduction
CrysalisProdata scaling
PHASERphasing