1Z7Z

Cryo-em structure of human coxsackievirus A21 complexed with five domain icam-1kilifi


ELECTRON MICROSCOPY
Sample
COXSACKIEVIRUS A21/ICAM- 1KILIFI COMPLEX
Sample Components
HUMAN COXSACKIEVIRUS A21 VP1 1073-1286
human coxsackievirus A21 VP2 2010-2272
human coxsackievirus A21 VP3 3043-3234
human coxsackievirus A21 VP1 1287-1298
human coxsackievirus A21 VP3 3035-3239
ICAM-1KILIFI
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentREICHERT-JUNG PLUNGER
Cryogen NameETHANE
Sample Vitrification DetailsPLUNGED INTO ETHANE AT LIQUID NITROGEN TEMPERATURE
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles4704
Reported Resolution (Å)8
Resolution Method
Other DetailsA B-FACTOR OF 589.46 WAS SET FOR ALL THE ATOMS BASED ON THE EQUATION OF -4*LN(0.1*RESOLUTION2) TO MIMIC A 8 ANGSTROM RESOLUTION CRYOEM STRUCTURE. OCCU ...A B-FACTOR OF 589.46 WAS SET FOR ALL THE ATOMS BASED ON THE EQUATION OF -4*LN(0.1*RESOLUTION2) TO MIMIC A 8 ANGSTROM RESOLUTION CRYOEM STRUCTURE. OCCUPANCY OF 1.0 WAS SET FOR ALL ATOMS OF THE VIRAL CAPSID. OCCUPANCY OF 0.80, 0.56, 0.24, 0.16, AND 0.08 WAS SET FOR ATOMS OF ICAM-1 DOMAIN 1, 2, 3, 4, AND 5, RESPECTIVELY, BASED ON THE FITTING RESULTS. SEE DETAILS IN THE CITATION.
Refinement Type
Symmetry TypePOINT
Point SymmetryI
Map-Model Fitting and Refinement
Id1 (1IAM, 1Z7S)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement TargetBEST SUMF VALUE FIT USING THE PROGRAM EMFIT
Overall B Value
Fitting Procedure
DetailsREFINEMENT PROTOCOL--RIGID BODY
Data Acquisition
Detector TypeKODAK SO-163 FILM
Electron Dose (electrons/Å**2)26
Imaging Experiment1
Date of Experiment2001-03-15
Temperature (Kelvin)100
Microscope ModelFEI/PHILIPS CM300FEG/T
Minimum Defocus (nm)700
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification45000
Calibrated Magnification47000
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging DetailsSAMPLES WERE MAINTAINED AT LIQUID NITROGEN TEMPERATURES IN THE ELECTRON MICROSCOPE.
EM Software
TaskSoftware PackageVersion
MODEL FITTINGEMfit
RECONSTRUCTIONEM3DR
RECONSTRUCTIONPFT
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
REVERSED CTF WITH WEINER FACTOR FOR EACH PARTICLE