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Efficient 3D-CTF correction for cryo-electron tomography using NovaCTF improves subtomogram averaging resolution to 3.4Å.

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TLDR
A user-friendly, computationally-efficient 3D-CTF correction tool, NovaCTF, that is compatible with standard tomogram reconstruction workflows in IMOD is presented and it is found that high-resolution structures can be obtained with much smaller subtomogram averaging datasets than are required using 2D- CTF.
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This article is published in Journal of Structural Biology.The article was published on 2017-09-01 and is currently open access. It has received 198 citations till now.

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Journal ArticleDOI

Determining structures in a native environment using single-particle cryoelectron microscopy images.

TL;DR: In this paper, the densities of non-target proteins are treated as non-Gaussian noise, and a new target function is developed to improve the efficiency of recognizing the target protein in a single image.
Journal ArticleDOI

Efficient manual annotation of cryogenic electron tomograms using IMOD

TL;DR: In this paper , the authors present a manual annotation protocol using the open-source software IMOD and describe segmentation of three types of common cellular features: membranes, large globules, and filaments.
Journal ArticleDOI

Electron cryotomography of SARS-CoV-2 virions reveals cylinder-shaped particles with a double layer RNP assembly

TL;DR: In this article , the authors performed electron cryotomography (cryo-ET) on SARS-Cov-2 virions and three variants revealing particles of regular cylindrical morphology.
Posted ContentDOI

Structural insights into HIV-1 polyanion-dependent capsid lattice formation revealed by single particle cryo-EM

TL;DR: In this article , the authors used a combination of lattice templating and single particle analysis (SPA) to determine high-resolution structures of continuous regions of the HIV-1 capsid lattice containing both hexamers and pentamers.
Journal ArticleDOI

A feature-guided, focused 3D signal permutation method for subtomogram averaging

TL;DR: Maintenance of feature-guided alignment and 3D signal permutation leads to improved subtomogram average maps for a dataset of synaptic protein complexes in their native environment.
References
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Journal ArticleDOI

Computer Visualization of Three-Dimensional Image Data Using IMOD

TL;DR: IMOD is useful for studying and modeling data from tomographic, serial section, and optical section reconstructions and allows image data to be visualized by several different methods.
Journal ArticleDOI

CTFFIND4: Fast and accurate defocus estimation from electron micrographs.

TL;DR: Modifications to the CTFFIND algorithm are described which make it significantly faster and more suitable for use with images collected using modern technologies such as dose fractionation and phase plates.
Journal ArticleDOI

Simultaneous algebraic reconstruction technique (SART): a superior implementation of the art algorithm.

TL;DR: This implementation of the Algebraic Reconstruction Technique appears to have a computational advantage over the more traditional implementation of ART and potential applications include image reconstruction in conjunction with ray tracing for ultrasound and microwave tomography.
Journal ArticleDOI

Accurate determination of local defocus and specimen tilt in electron microscopy

TL;DR: Two computer programs are presented, CTFFIND3 and CTFTILT, which determine defocus parameters from images of untilted specimens, as well as defocus and tilt parameters from image of tilted specimens, respectively, using a simple algorithm.
Book

Extrapolation, Interpolation, and Smoothing of Stationary Time Series: With Engineering Applications

TL;DR: Extrapolation interpolation and smoothing of stationary, stationary tones interference cancellation using adaptive and stationary time series financial definition of stationary.
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