Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Progress in Human and Tetrahymena Telomerase Structure Determination

Progress in Human and Tetrahymena Telomerase Structure Determination Telomerase is an RNA–protein complex that extends the 3′ ends of linear chromosomes, using a unique telomerase reverse transcriptase (TERT) and template in the telomerase RNA (TR), thereby helping to maintain genome integrity. TR assembles with TERT and species-specific proteins, and telomerase function in vivo requires interaction with telomere-associated proteins. Over the past two decades, structures of domains of TR and TERT as well as other telomerase- and telomere-interacting proteins have provided insights into telomerase function. A recently reported 9-Å cryo–electron microscopy map of the Tetrahymena telomerase holoenzyme has provided a framework for understanding how TR, TERT, and other proteins from ciliate as well as vertebrate telomerase fit and function together as well as unexpected insight into telomerase interaction at telomeres. Here we review progress in understanding the structural basis of human and Tetrahymena telomerase activity, assembly, and interactions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Biophysics Annual Reviews

Progress in Human and Tetrahymena Telomerase Structure Determination

Loading next page...
 
/lp/annual-reviews/progress-in-human-and-tetrahymena-telomerase-structure-determination-nzD72bidTq

References (187)

Publisher
Annual Reviews
Copyright
Copyright © 2017 by Annual Reviews. All rights reserved
ISSN
1936-122X
eISSN
1936-1238
DOI
10.1146/annurev-biophys-062215-011140
pmid
28301767
Publisher site
See Article on Publisher Site

Abstract

Telomerase is an RNA–protein complex that extends the 3′ ends of linear chromosomes, using a unique telomerase reverse transcriptase (TERT) and template in the telomerase RNA (TR), thereby helping to maintain genome integrity. TR assembles with TERT and species-specific proteins, and telomerase function in vivo requires interaction with telomere-associated proteins. Over the past two decades, structures of domains of TR and TERT as well as other telomerase- and telomere-interacting proteins have provided insights into telomerase function. A recently reported 9-Å cryo–electron microscopy map of the Tetrahymena telomerase holoenzyme has provided a framework for understanding how TR, TERT, and other proteins from ciliate as well as vertebrate telomerase fit and function together as well as unexpected insight into telomerase interaction at telomeres. Here we review progress in understanding the structural basis of human and Tetrahymena telomerase activity, assembly, and interactions.

Journal

Annual Review of BiophysicsAnnual Reviews

Published: May 22, 2017

There are no references for this article.