The promise and the challenges of cryo‐electron tomography

M Turk, W Baumeister - FEBS letters, 2020 - Wiley Online Library
Structural biologists have traditionally approached cellular complexity in a reductionist
manner in which the cellular molecular components are fractionated and purified before …

Structural biology of cilia and intraflagellar transport

N Klena, G Pigino - Annual review of cell and developmental …, 2022 - annualreviews.org
Cilia are ubiquitous microtubule-based eukaryotic organelles that project from the cell to
generate motility or function in cellular signaling. Motile cilia or flagella contain axonemal …

In situ architecture of the ciliary base reveals the stepwise assembly of intraflagellar transport trains

H Van den Hoek, N Klena, MA Jordan, G Alvarez Viar… - Science, 2022 - science.org
The cilium is an antenna-like organelle that performs numerous cellular functions, including
motility, sensing, and signaling. The base of the cilium contains a selective barrier that …

iU-ExM: nanoscopy of organelles and tissues with iterative ultrastructure expansion microscopy

V Louvel, R Haase, O Mercey, MH Laporte… - Nature …, 2023 - nature.com
Expansion microscopy (ExM) is a highly effective technique for super-resolution
fluorescence microscopy that enables imaging of biological samples beyond the diffraction …

Visualizing the native cellular organization by coupling cryofixation with expansion microscopy (Cryo-ExM)

MH Laporte, N Klena, V Hamel, P Guichard - Nature methods, 2022 - nature.com
Cryofixation has proven to be the gold standard for efficient preservation of native cell
ultrastructure compared to chemical fixation, but this approach is not widely used in …

CCDC15 localizes to the centriole inner scaffold and controls centriole length and integrity

MD Arslanhan, S Cengiz-Emek, E Odabasi… - Journal of Cell …, 2023 - rupress.org
Centrioles are microtubule-based organelles responsible for forming centrosomes and cilia,
which serve as microtubule-organizing, signaling, and motility centers. Biogenesis and …

ELI trifocal microscope: a precise system to prepare target cryo-lamellae for in situ cryo-ET study

S Li, Z Wang, X Jia, T Niu, J Zhang, G Yin, X Zhang… - Nature …, 2023 - nature.com
Cryo-electron tomography (cryo-ET) has become a powerful approach to study the high-
resolution structure of cellular macromolecular machines in situ. However, the current …

Proteomic characterization of the Toxoplasma gondii cytokinesis machinery portrays an expanded hierarchy of its assembly and function

K Engelberg, T Bechtel, C Michaud… - Nature …, 2022 - nature.com
The basal complex (BC) is essential for T. gondii cell division but mechanistic details are
lacking. Here we report a reciprocal proximity based biotinylation approach to map the BC's …

The multi‐scale architecture of mammalian sperm flagella and implications for ciliary motility

MR Leung, MC Roelofs, RT Ravi, P Maitan… - The EMBO …, 2021 - embopress.org
Motile cilia are molecular machines used by a myriad of eukaryotic cells to swim through
fluid environments. However, available molecular structures represent only a handful of cell …

Ultrastructure expansion microscopy (U-ExM)

D Gambarotto, V Hamel, P Guichard - Methods in cell biology, 2021 - Elsevier
Expansion microscopy (ExM) physically magnifies specimens, allowing to obtain super-
resolution images using a conventional diffraction-limited microscope such as confocal …