8WIY

cryo-EM structure of alligator haemoglobin in oxy form


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFold 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_3_deg21.608
r_long_range_B_refined19.362
r_long_range_B_other19.325
r_scangle_other13.877
r_scbond_it9.001
r_scbond_other8.984
r_mcangle_other8.216
r_mcangle_it8.211
r_dihedral_angle_2_deg7.003
r_dihedral_angle_1_deg5.826
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_3_deg21.608
r_long_range_B_refined19.362
r_long_range_B_other19.325
r_scangle_other13.877
r_scbond_it9.001
r_scbond_other8.984
r_mcangle_other8.216
r_mcangle_it8.211
r_dihedral_angle_2_deg7.003
r_dihedral_angle_1_deg5.826
r_mcbond_it5.643
r_mcbond_other5.642
r_angle_refined_deg1.842
r_angle_other_deg0.611
r_chiral_restr0.097
r_bond_refined_d0.011
r_gen_planes_refined0.01
r_gen_planes_other0.006
r_bond_other_d
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Sample
alligator haemoglobin in carboxy form
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles372582
Reported Resolution (Å)2.31
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC2
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)60
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)400
Maximum Defocus (nm)1200
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification165000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARC4.2.1
MODEL FITTINGCoot0.9.8.8
MODEL FITTINGISOLDE1.6
MODEL FITTINGUCSF ChimeraX1.6.1
MODEL REFINEMENTServalcat0.2.85
INITIAL EULER ASSIGNMENTcryoSPARC4.2.1
FINAL EULER ASSIGNMENTcryoSPARC4.2.1
RECONSTRUCTIONcryoSPARC4.2.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION