Results 81 to 90 of about 769,499 (354)

The myosin X motor is optimized for movement on actin bundles

Nature Communications, 2016
Myosin X is a molecular motor unique in its ability to generate filopodia, but the mechanism explaining this behaviour is not known. Here, through a combination of structure, single-molecule assays and modelling the authors show that myosin X is ...
Virginie Ropars, Zhaohui Yang, Tatiana Isabet, Florian Blanc, Kaifeng Zhou, Tianming Lin, Xiaoyan Liu, Pascale Hissier, Frédéric Samazan, Béatrice Amigues, Eric D. Yang, Hyokeun Park, Olena Pylypenko, Marco Cecchini, Charles V. Sindelar, H. Lee Sweeney, Anne Houdusse   +16 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

How bacterial cells and colonies move on solid substrates

, 2019
Many bacteria rely on active cell appendages, such as type IV pili, to move over substrates and interact with neighboring cells. Here, we study the motion of individual cells and bacterial colonies, mediated by the collective interactions of multiple ...
Pönisch, Wolfram, Weber, Christoph A., Zaburdaev, Vasily   +2 more
core   +1 more source

Cryoprotectant-free vitrification of human spermatozoa in new artificial seminal fluid [PDF]

, 2016
Vitrification is a new method that has been recently introduced in Assisted Reproduction Technique programs. The aim of this study was to design a new medium similar to normal human seminal fluid (SF), formulation artificial seminal fluid (ASF), and to ...
Agha Rahimi, A., Khalili, M. A., MIGLIETTA, SELENIA, Moradi, A., NOTTOLA, Stefania Annarita   +4 more
core   +1 more source

Automatic diagnosis of extraocular muscle palsy based on machine learning and diplopia images [PDF]

International Journal of Ophthalmology
AIM: To develop different machine learning models to train and test diplopia images and data generated by the computerized diplopia test. METHODS: Diplopia images and data generated by computerized diplopia tests, along with patient medical records, were
Xiao-Lu Jin, Xue-Mei Li, Tie-Juan Liu, Ling-Yun Zhou   +3 more
doaj   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Motile Systems: Tubulin-based motility races ahead [PDF]

Current Biology, 1995
AbstractRecent structural studies raise the possibility that our first atomic models for how motor proteins work may come from tubulin-based motility, and not the actin–myosin system of muscle.
openaire   +2 more sources

Esophageal High Pressure Zones: Effect of Perisophageal Structures on Esophageal Manometric Recording

Canadian Journal of Gastroenterology, 1994
During the course of esophageal motility studies, short zones of elevated esophageal baseline pressure are occasionally noticed. The aim of this study is to determine their frequency and their cause. Among 77 consecutive esophageal manometries (group 1),
G Bédard, A Pellicano, R Ste-Marie
doaj   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source