Publication

Telomerase and chromosome end maintenance

1998
Journal Articles

Abstract

The past year has seen significant advances in our understanding of telomerase and other factors involved in chromosome end maintenance. The protein subunit of telomerase that provides the active site for telomeric DNA synthesis was identified in ciliates, yeast and mammals. It is structurally related to reverse transcriptase and thus represents the first member of this protein family with an essential cellular function. Telomere DNA-binding proteins that may mediate the interaction of telomerase with telomeres have been identified and further characterized in diverse eukaryotes. A further elucidation of telomeric DNA structure has influenced our view of how telomeres replicate.

Official source

https://infoscience.epfl.ch/entities/publication/67d24cbf-1545-46b9-a63b-15cf9d391ea1

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1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/67d24cbf-1545-46b9-a63b-15cf9d391ea1

About this result

Related concepts (32)

Telomere

A telomere (ˈtɛləmɪər,_ˈtiːlə-; ) is a region of repetitive nucleotide sequences associated with specialized proteins at the ends of linear chromosomes. Telomeres are a widespread genetic feature most commonly found in eukaryotes. In most, if not all species possessing them, they protect the terminal regions of chromosomal DNA from progressive degradation and ensure the integrity of linear chromosomes by preventing DNA repair systems from mistaking the very ends of the DNA strand for a double-strand break.

DNA replication

In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part of biological inheritance. This is essential for cell division during growth and repair of damaged tissues, while it also ensures that each of the new cells receives its own copy of the DNA. The cell possesses the distinctive property of division, which makes replication of DNA essential.

G-quadruplex

In molecular biology, G-quadruplex secondary structures (G4) are formed in nucleic acids by sequences that are rich in guanine. They are helical in shape and contain guanine tetrads that can form from one, two or four strands. The unimolecular forms often occur naturally near the ends of the chromosomes, better known as the telomeric regions, and in transcriptional regulatory regions of multiple genes, both in microbes and across vertebrates including oncogenes in humans.

Related publications (11)

Telomerase and chromosome end maintenance

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