6J60

hnRNP A1 reversible amyloid core GFGGNDNFG (residues 209-217)


ELECTRON CRYSTALLOGRAPHY

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 5.01α = 90
b = 27.8β = 90
c = 36.45γ = 90
Symmetry
Space GroupP 21 21 21

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
ELECTRON CRYSTALLOGRAPHYFREE R-VALUE0.963.9671.36515052186.930.23490.23320.2484
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_d10.981
f_angle_d1.044
f_chiral_restr0.122
f_bond_d0.014
f_plane_restr0.006

Software

Software
Software NamePurpose
PHENIXrefinement
Sample
9-mer peptide from Heterogeneous nuclear ribonucleoprotein A1
Specimen Preparation
Sample Aggregation State3D ARRAY
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Detailsblot 2 times
3D Reconstruction
Reconstruction MethodCRYSTALLOGRAPHY
Number of Particles
Reported Resolution (Å)0.96
Resolution MethodDIFFRACTION PATTERN/LAYERLINES
Other Details
Refinement Type
Symmetry Type3D CRYSTAL
Space Group Name
Length a5.01
Length b27.8
Length c27.8
Angle Alpha90
Angle Beta90
Angle Gamma90
Map-Model Fitting and Refinement
Id1
Refinement SpaceRECIPROCAL
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
DetailsWe have used the direct mehod of SHELXD to solve the structure
Data Acquisition
Detector TypeGATAN ULTRASCAN 4000 (4k x 4k)
Electron Dose (electrons/Å**2)0.05
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TECNAI F20
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeDIFFRACTION
Specimen Holder ModelGATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGCoot0.8.2
MOLECULAR REPLACEMENTPHENIX1.13-2998-000
RECONSTRUCTIONSHELXD
RECONSTRUCTIONPHENIX
RECONSTRUCTIONCoot
MODEL REFINEMENTPHENIX1.13-2998-000
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE