4A7H | pdb_00004a7h

Structure of the Actin-Tropomyosin-Myosin Complex (rigor ATM 2)


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3MFP 
experimental modelPDB 1LKX 
Sample
F-ACTIN-MYO1E-TROPOMYOSIN COMPLEX (CONFORMATION 2)
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentGATAN CRYOPLUNGE 3
Cryogen NameETHANE
Sample Vitrification DetailsVITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 90, TEMPERATURE- 101, INSTRUMENT- GATAN CRYOPLUNGE 3, METHOD- MANUAL BLOTTING FOR APPROXIMATELY 15 SECON ...VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 90, TEMPERATURE- 101, INSTRUMENT- GATAN CRYOPLUNGE 3, METHOD- MANUAL BLOTTING FOR APPROXIMATELY 15 SECONDS,
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles9650
Reported Resolution (Å)7.8
Resolution Method
Other DetailsSUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-1988 (DEPOSITION ID: 10379).
Refinement Type
Symmetry TypeHELICAL
Map-Model Fitting and Refinement
Id1 (3MFP, 1LKX)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
DetailsMETHOD--GEOMETRY-BASED CONFORMATIONAL SAMPLING USING DEFORMABLE ELASTIC NETWORK (DEN) APPROACH REFINEMENT PROTOCOL--EM
Data Acquisition
Detector TypeTVIPS TEMCAM-F816 (8k x 8k)
Electron Dose (electrons/Å**2)1.7
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)77
Microscope ModelJEOL 3200FSC
Minimum Defocus (nm)750
Maximum Defocus (nm)1500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS4.1
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification80000
Calibrated Magnification169644
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging DetailsBEST 836 MICROGRAPHS WERE SELECTED FROM OVER 3000 AQUIRED IMAGES
EM Software
TaskSoftware PackageVersion
MODEL FITTINGDireX
RECONSTRUCTIONSPARX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
EACH PARTICLE