7KZM

Outer dynein arm bound to doublet microtubules from C. reinhardtii


ELECTRON MICROSCOPY
Sample
ODA complex
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details2.5 ul of splayed axoneme solution was then dispensed onto glow-discharged C-Flat 1.2/1.3-4Cu grids inside a Vitrobot Mark IV under 100% humidity. Aft ...2.5 ul of splayed axoneme solution was then dispensed onto glow-discharged C-Flat 1.2/1.3-4Cu grids inside a Vitrobot Mark IV under 100% humidity. After a 10 s delay time, cryo-EM samples were prepared by first blotting for 10 s with blot force set to 16 and immediately plunged into liquid ethane.
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles485694
Reported Resolution (Å)7.5
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsThe composite map varies in resolution from 3.5 to 12 A. The reference map is 7.5 A.
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise82
Angular Rotation
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement TargetCorrelation coefficient
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)61.48
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
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 SELECTIONRELION3.1
IMAGE ACQUISITIONSerialEM3.6 and 3.7
CTF CORRECTIONCTFFIND4
MODEL FITTINGCoot0.9.1
MODEL REFINEMENTPHENIX1.18.2
INITIAL EULER ASSIGNMENTRELION3.1
FINAL EULER ASSIGNMENTRELION3.1
CLASSIFICATIONRELION3.1
RECONSTRUCTIONRELION3.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONThe composite map was assembled on a box 700 reference map (7.5 A) using the ODA-DC and ODA core composite maps (deposited separately), and maps targeting the aHC AAA+ domain (4.5 A), bHC AAA+ domain (6.2 A), aHC AAA+ domain (11.4 A), and aHC tail domain (5.3 A). A second conformation of bHC AAA+ domain (9.8 A) is also provided.5584147