3DNL
Molecular structure for the HIV-1 gp120 trimer in the b12-bound state
ELECTRON MICROSCOPY
Sample |
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HIV-1 BaL |
Sample Components |
HIV-1 Envelope Glycoprotein GP120 |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK I |
Cryogen Name | ETHANE |
Sample Vitrification Details | Ethane 77K 100%RH Vitrobot |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | |
Reported Resolution (Å) | 20 |
Resolution Method | |
Other Details | IMOD was used for tomographic reconstruction. Programs developed in-house were used for alignment and classification of individual tomographic volumes ... |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C3 |
Map-Model Fitting and Refinement | |||||
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Id | 1 (1GC1) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | correlation coefficient | ||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | METHOD--Automatic. The coordinates for this entry and the two related entries 3DNN and 3DNO are based on fitting 1GC1 coordinates for the gp120 monom ... |
Data Acquisition | |||||||||
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Detector Type | GENERIC CCD | ||||||||
Electron Dose (electrons/Å**2) | 80 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | 90 |
Microscope Model | FEI POLARA 300 |
Minimum Defocus (nm) | 2000 |
Maximum Defocus (nm) | 4000 |
Minimum Tilt Angle (degrees) | -70 |
Maximum Tilt Angle (degrees) | 70 |
Nominal CS | 2.2 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | 34000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 200 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
MODEL FITTING | UCSF Chimera | |
RECONSTRUCTION | IMOD |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
No CTF correction applied |