Results 41 to 50 of about 99,841 (293)

Biological Breakthroughs and Drug Discovery Revolution via Cryo-Electron Microscopy of Membrane Proteins

open access: yesMembranes
The application of cryo-electron microscopy (cryo-EM) in membrane protein structural biology has catalyzed unprecedented advances in our understanding of fundamental biological processes and transformed drug discovery paradigms.
Vitor Hugo Balasco Serrão
doaj   +1 more source

Cryogenic electron tomography reveals herpesvirus capsid assembly intermediates inside the cell nucleus

open access: yesNature Communications
Herpesviruses encapsulate their double-stranded DNA (dsDNA) genomes within an icosahedral nucleocapsid formed in the infected cell nucleus. Four biochemically purified nucleocapsids have been characterized, but their roles in herpesvirus replication ...
Stefan L. Oliver   +7 more
doaj   +1 more source

Building Proteins in a Day: Efficient 3D Molecular Reconstruction

open access: yes, 2015
Discovering the 3D atomic structure of molecules such as proteins and viruses is a fundamental research problem in biology and medicine. Electron Cryomicroscopy (Cryo-EM) is a promising vision-based technique for structure estimation which attempts to ...
Brubaker, Marcus A.   +2 more
core   +1 more source

Imaging and 3D reconstruction of membrane protein complexes by cryo-electron microscopy and single particle analysis [PDF]

open access: yes, 2006
Cryo-electron microscopy (cryo-EM) in combination with single particle image processing and volume reconstruction is a powerful technology to obtain medium-resolution structures of large protein complexes, which are extremely difficult to crystallize and ...
Gregorini, Marco
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Using cryo-electron microscopy maps for X-ray structure determination

open access: yesIUCrJ, 2018
X-ray crystallography and cryo-electron microscopy (cryo-EM) are complementary techniques for structure determination. Crystallography usually reveals more detailed information, while cryo-EM is an extremely useful technique for studying large-sized ...
Lingxiao Zeng, Wei Ding, Quan Hao
doaj   +1 more source

A^2-Net: Molecular Structure Estimation from Cryo-EM Density Volumes

open access: yes, 2019
Constructing of molecular structural models from Cryo-Electron Microscopy (Cryo-EM) density volumes is the critical last step of structure determination by Cryo-EM technologies.
Li, Hongsheng   +4 more
core   +1 more source

Assessment of the nucleotide modifications in the high-resolution cryo-electron microscopy structure of the Escherichia coli 50S subunit. [PDF]

open access: yes, 2020
Post-transcriptional ribosomal RNA (rRNA) modifications are present in all organisms, but their exact functional roles and positions are yet to be fully characterized.
Fraser, James S   +5 more
core  

Structural insights on TRPV5 gating by endogenous modulators. [PDF]

open access: yes, 2018
TRPV5 is a transient receptor potential channel involved in calcium reabsorption. Here we investigate the interaction of two endogenous modulators with TRPV5.
Carnevale, Vincenzo   +13 more
core   +3 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

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