Human telomerase contains evolutionarily conserved catalytic and structural subunits
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چکیده
منابع مشابه
Human H/ACA small nucleolar RNPs and telomerase share evolutionarily conserved proteins NHP2 and NOP10.
The H/ACA small nucleolar RNAs (snoRNAs) are involved in pseudouridylation of pre-rRNAs. In the yeast Saccharomyces cerevisiae, four common proteins are associated with H/ACA snoRNAs: Gar1p, Cbf5p, Nhp2p, and Nop10p. In vitro reconstitution studies showed that four proteins also specifically interact with H/ACA snoRNAs in mammalian cell extracts. Two mammalian proteins, NAP57/dyskerin (the orth...
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Eukaryotic chromosomes end in short nucleotide repeats that are added by the enzyme telomerase. The catalytic subunit of telomerase has been shown to be most closely related in sequence to reverse transcriptases encoded by eukaryotic retrotransposable elements. This raises the question as to whether the telomerase subunit was present in the first eukaryotes or was derived during early eukaryote...
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The FYVE domain is an approx. 80 amino acid motif that binds to the phosphoinositide PtdIns3P with high specificity and affinity. It is present in 38 predicted gene products within the human genome, but only in 12-13 in Caenorhabditis elegans and Drosophila melanogaster. Eight of these are highly conserved in all three organisms, and they include proteins that have not been characterized in any...
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Comparison of human sequences with the DNA of other mammals is an excellent means of identifying functional elements in the human genome. Here we describe the utility of high-density oligonucleotide arrays as a rapid approach for comparing human sequences with the DNA of multiple species whose sequences are not presently available. High-density arrays representing approximately 22.5 Mb of nonre...
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After decades of ignominy as ‘junk’, ‘parasite’ or ‘selfish’, noncoding deoxyribonucleic acid (DNA) present in introns and intergenic regions has recently been recognized as symbolizing a rich fossil record of DNA sequences subject to variation and conservation throughout evolution. In addition to clusters of evolutionarily conserved genes in close proximity to one another, human chromosomes al...
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ژورنال
عنوان ژورنال: Genes & Development
سال: 1997
ISSN: 0890-9369
DOI: 10.1101/gad.11.23.3109