8T60

CryoEM structure of an inward-facing MelBSt at a Na(+)-bound and sugar low-affinity conformation


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7L17 
in silico modelAlphaFold 
experimental modelPDB 7PHP 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d11.0701
f_angle_d0.4978
f_chiral_restr0.0398
f_bond_d0.0028
f_plane_restr0.0028
Sample
MelBSt bound with Nb725_4-NabFab complex
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK II
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles296925
Reported Resolution (Å)3.29
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (7L17, 7PHP, 7PHP)
Refinement Space
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI CETA (4k x 4k)
Electron Dose (electrons/Å**2)1.28
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)1800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARCv3
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARCv3
MODEL FITTINGUCSF ChimeraX
MODEL FITTINGPHENIX
MODEL REFINEMENTPHENIX1.20
CLASSIFICATIONcryoSPARCv4
RECONSTRUCTIONcryoSPARCcryoSPARC
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONusing cryoSPARC patch CTF estimation