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 1GR5 | pdb_00001gr5

Solution Structure of apo GroEL by Cryo-Electron microscopy


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1DER 
Sample
MOLECULAR CHAPERONE
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentHOMEMADE PLUNGER
Cryogen NameETHANE
Sample Vitrification DetailsLIQUID ETHANE
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles8728
Reported Resolution (Å)7.9
Resolution MethodFSC 0.5 CUT-OFF
Other DetailsTHE THREE DOMAINS FROM EACH SUBUNIT (PDB 1DER) WERE FITTED SEPARATELY INTO EM DENSITY OF WILD TYPE UNLIGANDED GROEL. THE MUTATIONS LISTED ARE PRESENT ...THE THREE DOMAINS FROM EACH SUBUNIT (PDB 1DER) WERE FITTED SEPARATELY INTO EM DENSITY OF WILD TYPE UNLIGANDED GROEL. THE MUTATIONS LISTED ARE PRESENT IN THE FITTED COORDINATES AND NOT IN THE MOLECULE WHICH GENERATED THE EM MAP. THE QUOTED RESOLUTION IS AT 3SIGMA - THE RESOLUTION AT FSC=0.5 IS 10.8A THIS ENTRY REPRESENTS THE COMPLETE BIOMOLECULE.
Refinement Type
Symmetry TypePOINT
Point SymmetryD7
Map-Model Fitting and Refinement
Id1 (1DER)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
DetailsMETHOD--LOCAL CORRELATION REFINEMENT PROTOCOL--X-RAY
Data Acquisition
Detector TypeKODAK SO-163 FILM
Electron Dose (electrons/Å**2)20
Imaging Experiment1
Date of Experiment1997-02-01
Temperature (Kelvin)95
Microscope ModelFEI/PHILIPS CM200T
Minimum Defocus (nm)800
Maximum Defocus (nm)1900
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification38000
Calibrated Magnification40200
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGDockEM
RECONSTRUCTIONSPIDER
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
CLASS AVERAGES