9CZQ | pdb_00009czq

Ca2+ bound open-inactivated hSlo1 + beta2N-beta4 channel in detergent.


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6V22 
Sample
Ca2+ bound BK channel complex of hSlo1 + beta2N-beta4 subunit
Sample Components
hSlo1 channel
Inactivating beta2N-beta4 subunit chimera
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles41832
Reported Resolution (Å)2.88
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (6v22)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)48.45
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcrYOLO
IMAGE ACQUISITIONLeginon3.7
CTF CORRECTIONRELION4.0.0
MODEL FITTINGCoot0.8.9
MODEL REFINEMENTPHENIX1.21.1
INITIAL EULER ASSIGNMENTRELION4.0.0
FINAL EULER ASSIGNMENTRELION4.0.0
CLASSIFICATIONRELION
RECONSTRUCTIONRELION4.0.0
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING ONLY