Recent progress in dynein structure and mechanism.

Curr Opin Cell Biol

Kansai Advanced Research Center, 588-2 Iwaoka, Nishi-ku, Kobe 6512492, Japan.

Published: February 2005

AI Article Synopsis

  • Dynein is an important microtubule motor that moves toward the minus end of microtubules and is vital for various cellular functions.
  • Recent advancements have improved our understanding of dynein's structure, how it changes shape during ATP hydrolysis, and the coordination of its motor domains.
  • The challenges of studying dynein stem from its large size and the difficulties in creating and purifying mutant versions of the protein.

Article Abstract

Dynein is a minus-end-directed microtubule motor crucial to diverse cellular processes. The unwieldy size of the molecule and the difficulty of expressing and purifying mutants have hampered mechanistic studies of dynein. Recent progress sheds light on key unsolved questions concerning how the molecule is really organized, what conformational changes accompany ATP hydrolysis and whether two or three motor domains are coordinated in their motion.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ceb.2004.12.006DOI Listing

Publication Analysis

Top Keywords

progress dynein
4
dynein structure
4
structure mechanism
4
mechanism dynein
4
dynein minus-end-directed
4
minus-end-directed microtubule
4
microtubule motor
4
motor crucial
4
crucial diverse
4
diverse cellular
4

Similar Publications

Human asthenozoospermia: Update on genetic causes, patient management, and clinical strategies.

Andrology

January 2025

Institute for Advanced Biosciences, INSERM U 1209, CNRS UMR 5309, Université Grenoble Alpes, Team "Physiopathology and Pathophysiology of Sperm Cells", Grenoble, France.

Background: In mammals, sperm fertilization potential relies on efficient progression within the female genital tract to reach and fertilize the oocyte. This fundamental property is supported by the flagellum, an evolutionarily conserved organelle, which contains dynein motor proteins that provide the mechanical force for sperm propulsion and motility. Primary motility of the sperm cells is acquired during their transit through the epididymis and hyperactivated motility is acquired throughout the journey in the female genital tract by a process called capacitation.

View Article and Find Full Text PDF

Esophageal cancer is a major malignancy with a high incidence and poor prognosis. To elucidate the mechanisms underlying its progression, particularly with respect to cell division and spindle orientation, we investigated the role of m6A modifications and the centrosomal protein CEP170. Using m6A-seq and RNA-seq of esophageal cancer tissues and adjacent normal tissues, we identified significant alterations in m6A modifications and gene expression, highlighting the upregulation and m6A enrichment of CEP170 in tumor tissues.

View Article and Find Full Text PDF
Article Synopsis
  • - A study evaluated the management of primary ciliary dyskinesia (PCD) in pediatric participants using a multicenter, observational approach, collecting data on therapy types and their annual usage.
  • - Over 137 participants were monitored for 13 years, finding that nearly all received antibiotics, with a significant number using cephalosporins and chronic azithromycin, and older patients tended to utilize more therapies.
  • - Results indicated that therapy usage varies significantly, often correlating with age and specific types of ciliary defects, highlighting the need for more disease-specific research to better understand the effectiveness of these treatments.
View Article and Find Full Text PDF
Article Synopsis
  • PCD (Primary Ciliary Dyskinesia) and CF (Cystic Fibrosis) are both genetic diseases that affect how the lungs work and cause issues from a young age, but PCD is thought to be milder, even though evidence is limited.
  • The study wanted to see how children with PCD compare to those with CF in terms of health over time, especially focusing on children with certain severe forms of PCD.
  • They found that kids with PCD and the severe type had lower lung function than kids with CF, but their nutrition was similar, with more CF kids getting sick from bacteria in their lungs than PCD kids.
View Article and Find Full Text PDF

Background: In hepatocellular carcinoma (HCC) treatment, first-line targeted therapy in combination with immune checkpoint inhibitors (ICIs) has improved patient prognosis, but the 5-year survival rate is far from satisfactory. Studies have shown that the extracellular matrix (ECM) is an essential part of the tumour microenvironment (TME) and participates in the progression of malignant tumours. ECM remodelling can enhance matrix stiffness in cirrhosis patients, induce an immunosuppressive microenvironment network, and affect the efficacy of targeted therapies and ICIs for treating HCC.

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!