Document Detail


Finding the end: recruitment of telomerase to telomeres.
MedLine Citation:
PMID:  23299958     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Telomeres, the ends of linear eukaryotic chromosomes, are characterized by the presence of multiple repeats of a short DNA sequence. This telomeric DNA is protected from illicit repair by telomere-associated proteins, which in mammals form the shelterin complex. Replicative polymerases are unable to synthesize DNA at the extreme ends of chromosomes, but in unicellular eukaryotes such as yeast and in mammalian germ cells and stem cells, telomere length is maintained by a ribonucleoprotein enzyme known as telomerase. Recent work has provided insights into the mechanisms of telomerase recruitment to telomeres, highlighting the contribution of telomere-associated proteins, including TPP1 in humans, Ccq1 in Schizosaccharomyces pombe and Cdc13 and Ku70-Ku80 in Saccharomyces cerevisiae.
Authors:
Jayakrishnan Nandakumar; Thomas R Cech
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-09
Journal Detail:
Title:  Nature reviews. Molecular cell biology     Volume:  -     ISSN:  1471-0080     ISO Abbreviation:  Nat. Rev. Mol. Cell Biol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100962782     Medline TA:  Nat Rev Mol Cell Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Howard Hughes Medical Institute, Department of Chemistry and Biochemistry, BioFrontiers Institute, University of Colorado, Boulder, Colorado 80309-0596, USA.
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