The 5'-3' exoribonuclease Pacman (Xrn1) regulates expression of the heat shock protein Hsp67Bc and the microRNA miR-277-3p in Drosophila wing imaginal discs [PDF]
, 2013 Pacman/Xrn1 is a highly conserved exoribonuclease known to play a critical role in gene regulatory events such as control of mRNA stability, RNA interference and regulation via miRNAs.
Bate M +7 more
core +1 more source
Crystal structure of Schmallenberg orthobunyavirus nucleoprotein-RNA complex reveals a novel RNA sequestration mechanism [PDF]
, 2013 Schmallenberg virus (SBV) is a newly emerged orthobunyavirus (family Bunyaviridae) that has caused severe disease in the offspring of farm animals across Europe.
Bottcher, B. +4 more
core +1 more source
Cellular mRNAs access second ORFs using a novel amino acid sequence-dependent coupled translation termination-reinitiation mechanism [PDF]
, 2014 Polycistronic transcripts are considered rare in the human genome. Initiation of translation of internal ORFs of eukaryotic genes has been shown to use either leaky scanning or highly structured IRES regions to access initiation codons.
Croft, Wayne D. +4 more
core +1 more source
Hfq binding changes the structure of Escherichia coli small noncoding RNAs OxyS and RprA, which are involved in the riboregulation of rpoS [PDF]
, 2013 OxyS and RprA are two small noncoding RNAs (sRNAs) that modulate the expression of rpoS, encoding an alternative sigma factor that activates transcription of multiple Escherichia coli stress-response genes. While RprA activates rpoS for translation, OxyS
Callaghan, Anastasia +9 more
core +1 more source
RNA-Puzzles Round IV:3D structure predictions of four ribozymes and two aptamers [PDF]
, 2020 International audienceRNA-Puzzles is a collective endeavor dedicated to the advancement and improvement of RNA 3D structure prediction. With agreement from crystallographers, the RNA structures are predicted by various groups before the publication of ...
Adamiak, Ryszard W. +49 more
core +3 more sources
Interaction of yeast eIF4G with spliceosome components Implications in pre-mRNA processing events [PDF]
, 2009 International audienceAs evidenced from mammalian cells the eukaryotic translation initiation factor eIF4G has a putative role in nuclear RNA metabolism. Here we investigate whether this role is conserved in the yeast Saccharomyces cerevisiae.
Barrass, J. David +6 more
core +2 more sources
Sequence motifs that distinguish ATP(CTP) : tRNA nucleotidyl transferases from eubacterial poly(A) polymerases [PDF]
, 2004 ATP(CTP):tRNA nucleotidyl transferases, tRNA maturing enzymes found in all organisms, and eubacterial poly(A) polymerases, enzymes involved in mRNA degradation, are so similar that until now their biochemical functions could not be distinguished by their
Keller, W., Martin, G.
core +2 more sources
A microRNA feedback loop regulates global microRNA abundance during aging [PDF]
, 2017 Expression levels of many microRNAs (miRNAs) change during aging, notably declining globally in a number of organisms and tissues across taxa. However, little is known about the mechanisms or the biological relevance for this change.
de Lencastre, Alexandre +3 more
core +2 more sources
Identification of novel components of Trypanosoma brucei editosomes [PDF]
, 2003 The editosome is a multiprotein complex that catalyzes the insertion and deletion of uridylates that occurs during RNA editing in trypanosomatids. We report the identification of nine novel editosome proteins in Trypanosoma brucei.
Carmean, Nicole +6 more
core +2 more sources
Topology of RNA-RNA interaction structures [PDF]
, 2011 The topological filtration of interacting RNA complexes is studied and the role is analyzed of certain diagrams called irreducible shadows, which form suitable building blocks for more general structures.
Andersen, Jørgen E. +3 more
core +3 more sources