A highly conserved repetitive DNA sequence, (TTAGGG)n, present at the telomeres of human chromosomes.
Robert K. Moyzis,Judy M. Buckingham,L. S. Cram,M. Dani,Larry L. Deaven,M. D. Jones,J. Meyne,Robert L. Ratliff,Jung-Rung Wu +8 more
Reads0
Chats0
TLDR
A highly conserved repetitive DNA sequence, (TTAGGG)n, has been isolated from a human recombinant repetitive DNA library and its similarity to functional telomeres isolated from lower eukaryotes suggest that this sequence is a functional human telomere.Abstract:Â
A highly conserved repetitive DNA sequence, (TTAGGG)n, has been isolated from a human recombinant repetitive DNA library. Quantitative hybridization to chromosomes sorted by flow cytometry indicates that comparable amounts of this sequence are present on each human chromosome. Both fluorescent in situ hybridization and BAL-31 nuclease digestion experiments reveal major clusters of this sequence at the telomeres of all human chromosomes. The evolutionary conservation of this DNA sequence, its terminal chromosomal location in a variety of higher eukaryotes (regardless of chromosome number or chromosome length), and its similarity to functional telomeres isolated from lower eukaryotes suggest that this sequence is a functional human telomere.read more
Citations
More filters
Journal ArticleDOI
Specific association of human telomerase activity with immortal cells and cancer
Nam Woo Kim,Mieczyslaw A. Piatyszek,Karen R. Prowse,Calvin B. Harley,Michael D. West,Peter L. C. Ho,Gina M. Coviello,Woodring E. Wright,Scott L. Weinrich,Jerry W. Shay +9 more
TL;DR: A highly sensitive assay for measuring telomerase activity was developed in this paper, which showed that telomerases appear to be stringently repressed in normal human somatic tissues but reactivated in cancer, where immortal cells are likely required to maintain tumor growth.
Journal ArticleDOI
Structure and function of telomeres
TL;DR: The DNA of telomeres—the terminal DNA-protein complexes of chromosomes—differs notably from other DNA sequences in both structure and function, and has been shown to be essential for telomere maintenance and long-term viability.
Journal ArticleDOI
Structure, Recognition, and Processing of Cisplatin-DNA Adducts.
Journal ArticleDOI
Multiplexed electrical detection of cancer markers with nanowire sensor arrays.
TL;DR: Highly sensitive, label-free, multiplexed electrical detection of cancer markers using silicon-nanowire field-effect devices in which distinct nanowires and surface receptors are incorporated into arrays opens up substantial possibilities for diagnosis and treatment of cancer and other complex diseases.
Telomere shortening associated withchromosome instability isarrested inimmortal cells whichexpress telomerase activity
Christopher M. Counter,Ariel A. Avilion,Catherine E. LeFeuvrel,Carol W. Greider,Calvin B. Harley,A. Steitz +5 more
TL;DR: The results suggest that chromosomes with short (TTAGGG)n tracts are recombinogenic, critically shortened telomeres may be incompatible with cell proliferation and stabilization of telomere length by telomerase may be required for immortalization.
References
More filters
Journal Article
Construction of a genetic linkage map in man using restriction fragment length polymorphisms.
TL;DR: A new basis for the construction of a genetic linkage map of the human genome is described, to develop, by recombinant DNA techniques, random single-copy DNA probes capable of detecting DNA sequence polymorphisms, when hybridized to restriction digests of an individual's DNA.
Journal ArticleDOI
Separation of yeast chromosome-sized DNAs by pulsed field gradient gel electrophoresis
TL;DR: This pulsed field gradient gel electrophoresis fractionates intact S. cerevisiae chromosomal DNA, producing a molecular karyotype that greatly facilitates the assignment of genes to yeast chromosomes.
Journal ArticleDOI
Variable number of tandem repeat (VNTR) markers for human gene mapping
Yusuke Nakamura,Mark Leppert,Peter O'Connell,Roger K. Wolff,Tom Holm,Melanie Culver,Cindy Martin,Esther Fujimoto,Mark Hoff,Erika Kumlin,Ray White +10 more
TL;DR: Ten oligomeric sequences derived from the tandem repeat regions of the myoglobin gene, the zeta-globin pseudogene, the insulin gene, and the X-gene region of hepatitis B virus were used to develop a series of single-copy probes that revealed new, highly polymorphic genetic loci whose allele sizes reflected variation in the number of tandem repeats.
Journal ArticleDOI
Cloning of large segments of exogenous DNA into yeast by means of artificial chromosome vectors
TL;DR: By offering a tenfold increase in the size of the DNA molecules that can be cloned into a microbial host, this system addresses a major gap in existing experimental methods for analyzing complex DNA sources.