A model of actin-driven endocytosis explains differences of endocytic motility in budding and fission yeast.

Mol Biol Cell

Richard D. Berlin Center for Cell Analysis and Modeling, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030.

Published: March 2022

A comparative study (Sun , 2019) showed that the abundance of proteins at sites of endocytosis in fission and budding yeast is more similar in the two species than previously thought, yet membrane invaginations in fission yeast elongate twofold faster and are nearly twice as long as in budding yeast. Here we use a three-dimensional model of a motile endocytic invagination (Nickaeen , 2019) to investigate factors affecting elongation of the invaginations. We found that differences in turgor pressure in the two yeast species can largely explain the paradoxical differences observed experimentally in endocytic motility.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9250386PMC
http://dx.doi.org/10.1091/mbc.E21-07-0362DOI Listing

Publication Analysis

Top Keywords

endocytic motility
8
fission yeast
8
budding yeast
8
yeast species
8
yeast
5
model actin-driven
4
actin-driven endocytosis
4
endocytosis explains
4
explains differences
4
differences endocytic
4

Similar Publications

Acidic pH of Early Endosomes Governs SARS-CoV-2 Transport in Host Cells.

J Biol Chem

December 2024

Department of Natural Sciences, University of Michigan-Dearborn, 4901 Evergreen Road, Dearborn, Michigan 48128, USA. Electronic address:

Endocytosis is a prominent mechanism for SARS-CoV-2 entry into host cells. Upon internalization into early endosomes (EEs), the virus is transported to late endosomes (LEs), where acidic conditions facilitate spike protein processing and viral genome release. Dynein and kinesin motors drive EE transport along microtubules; dynein moves EEs to the perinuclear region, while kinesins direct them towards the plasma membrane, creating a tug-of-war over the direction of transport.

View Article and Find Full Text PDF

Autism Spectrum Disorders (ASD) are a set of neurodevelopmental disorders with complex biology. The identification of ASD risk genes from exome-wide association studies and de novo variation analyses has enabled mechanistic investigations into how ASD-risk genes alter development. Most functional genomics studies have focused on the role of these genes in neurons and neural progenitor cells.

View Article and Find Full Text PDF

Functional dissection of prenyltransferases reveals roles in endocytosis and secretory vacuolar sorting in type 2-ME49 strain of .

Virulence

December 2024

Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, PR China.

Prenyltransferases act essential roles in the prenylation modification, which is significant for proteins, like small GTPases to execute various important activities in (). The structures and partial functions of prenyltransferases (FTase, GGTase-I, and GGTase-II) in prenylation process have been dissected in . However, the cellular effects of prenyltransferases on type 2-ME49 strain of are largely unknown.

View Article and Find Full Text PDF
Article Synopsis
  • Entamoeba histolytica is a protozoan parasite that causes amoebiasis, a major global health issue, with complex mechanisms of virulence including endocytic processes and motility.
  • Two kinases from the AGCK family, EhAGCK1 and EhAGCK2, have been studied, revealing that EhAGCK1 is specifically involved in trogocytosis while EhAGCK2 is engaged in all actin-dependent endocytic processes.
  • The research highlights the distinct biochemical properties of these kinases, including their ion dependency and substrate specificity, and emphasizes their unique roles in related endocytic processes such as trogocytosis and phagocytosis.
View Article and Find Full Text PDF
Article Synopsis
  • Macropinocytosis is a key endocytic process that allows cells to take in fluids and particles, playing an essential role in various cell functions like nutrient uptake and signaling.
  • While mostly studied in immune and cancer cells, the role of macropinocytosis in pathogens like Entamoeba histolytica, which causes amebiasis, is less understood.
  • This study investigates the role of Rho small GTPase proteins in macropinocytosis of E. histolytica, revealing that the protein EhRacM enhances macropinocytosis and influences cell migration, highlighting its importance in understanding pathogen behaviors.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!