Maf1-mediated repression of RNA polymerase III transcription inhibits tRNA degradation via RTD pathway [PDF]
, 2012 tRNA precursors, which are transcribed by RNA polymerase III, undergo end-maturation, splicing and base modifications. Hypomodified tRNAs, such as tRNAVal(AAC), lacking 7-methylguanosine and 5-methylcytidine modifications, are subject to degradation by a
Boguta, Magdalena +3 more
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RNA-specific ribonucleotidyl transferases [PDF]
, 2007 RNA-specific nucleotidyl transferases (rNTrs) are a diverse family of template-independent polymerases that add ribonucleotides to the 3'-ends of RNA molecules.
Keller, W. +3 more
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Roles of the HEAT repeat proteins Utp10 and Utp20 in 40S ribosome maturation [PDF]
, 2007 A family of HEAT-repeat containing ribosome synthesis factors was previously identified in Saccharomyces cerevisiae. We report the detailed characterization of two of these factors, Utp10 and Utp20, which were initially identified as components of the ...
Tollervey, David +2 more
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Computational discovery of animal small RNA genes and targets [PDF]
, 2007 Though recently discovered, small RNAs appear to play a wealth of regulatory roles, being involved in degradation of target mRNAs, translation silencing of target genes, chromatin remodeling and transposon silencing.
Gaidatzis, Dimosthenis
core +1 more source
PAPD5, a noncanonical poly(A) polymerase with an unusual RNA-binding motif [PDF]
, 2011 PAPD5 is one of the seven members of the family of noncanonical poly(A) polymerases in human cells. PAPD5 was shown to polyadenylate aberrant pre-ribosomal RNAs in vivo, similar to degradation-mediating polyadenylation by the noncanonical poly(A ...
Bilen, B. +7 more
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Diversity of Endonuclease V: From DNA Repair to RNA Editing
Biomolecules, 2015 Deamination of adenine occurs in DNA, RNA, and their precursors via a hydrolytic reaction and a nitrosative reaction. The generated deaminated products are potentially mutagenic because of their structural similarity to natural bases, which in turn leads
Isao Kuraoka
doaj +1 more source
Argonaute-dependent small RNAs derived from single-stranded non-structured precursors
Frontiers in Genetics, 2014 A general feature of Argonaute-dependent small RNAs is their base-paired precursor structures, and precursor duplex structures are often required for confident annotation of miRNA genes.
Li-Ling eChak +2 more
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Differential polyadenylation of ribosomal RNA during post-transcriptional processing in Leishmania. [PDF]
, 2005 The protozoan parasite Leishmania belongs to the most ancient eukaryotic lineages and this is reflected in several distinctive biological features, such as eukaryotic polycistronic transcription and RNA trans-splicing.
Laurent, T. +31 more
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Detection and Phylogenetic Analysis of Group 1 Coronaviruses in South American Bats
Emerging Infectious Diseases, 2008 Bat coronaviruses (Bt-CoVs) are thought to be the precursors of severe acute respiratory syndrome coronavirus. We detected Bt-CoVs in 2 bat species from Trinidad.
Christine V.F. Carrington +9 more
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Mechanisms of the RNA helicases DDX42 and DDX46 in human U2 snRNP assembly
Nature Communications, 2023 The U2 snRNP recognizes the intron during spliceosome assembly. Here the authors report the high-resolution structures of two assembly precursors of human U2 snRNP and reveal that the RNA helicases DDX42 and DDX46 are mutually exclusive in terms of SF3B1-
Fenghua Yang +7 more
doaj +1 more source