title: DExD/H-box RNA helicases in ribosome biogenesis.
abstract: Ribosome synthesis requires a multitude of cofactors, among them DExD/H-box RNA helicases. Bacterial RNA helicases involved in ribosome assembly are not essential, while eukaryotes strictly require multiple DExD/H-box proteins that are involved in the much more complex ribosome biogenesis pathway. Here, RNA helicases are thought to act in structural remodeling of the RNPs including the modulation of protein binding, and they are required for allowing access or the release of specific snoRNPs from pre-ribosomes. Interestingly, helicase action is modulated by specific cofactors that can regulate recruitment and enzymatic activity. This review summarizes the current knowledge and focuses on recent findings and open questions on RNA helicase function and regulation in ribosome synthesis.
authors.affiliation: Centre for Biochemistry and Molecular Cell Biology, Göttingen University, Göttingen, Germany.
authors.forename: Roman
authors.initials: R
authors.lastname: Martin
authors.forename: Annika U
authors.initials: AU
authors.lastname: Straub
authors.forename: Carmen
authors.initials: C
authors.lastname: Doebele
authors.forename: Markus T
authors.initials: MT
authors.lastname: Bohnsack
mesh_terms: D001419:Bacteria / Q000235:genetics / Q000378:metabolism; D006801:Humans; D012313:RNA / Q000378:metabolism; D020365:RNA Helicases / Q000235:genetics / Q000378:metabolism*; D012270:Ribosomes / Q000378:metabolism*; D012441:Saccharomyces cerevisiae / Q000235:genetics / Q000378:metabolism
chemical_list: D012313:RNA; D020365:RNA Helicases