title: Mitochondrial noncoding RNA transport.
abstract: Mitochondria are cytosolic organelles essential for generating energy and maintaining cell homeostasis. Despite their critical function, the handful of proteins expressed by the mitochondrial genome is insufficient to maintain mitochondrial structure or activity. Accordingly, mitochondrial metabolism is fully dependent on factors encoded by the nuclear DNA, including many proteins synthesized in the cytosol and imported into mitochondria via established mechanisms. However, there is growing evidence that mammalian mitochondria can also import cytosolic noncoding RNA via poorly understood processes. Here, we summarize our knowledge of mitochondrial RNA, discuss recent progress in understanding the molecular mechanisms and functional impact of RNA import into mitochondria, and identify rising challenges and opportunities in this rapidly evolving field. [BMB Reports 2017; 50(4): 164-174].
authors.affiliation: Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland 21224, USA.
authors.forename: Kyoung Mi
authors.initials: KM
authors.lastname: Kim
authors.affiliation: Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland 21224, USA.
authors.forename: Ji Heon
authors.initials: JH
authors.lastname: Noh
authors.affiliation: Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland 21224, USA.
authors.forename: Kotb
authors.initials: K
authors.lastname: Abdelmohsen
authors.affiliation: Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland 21224, USA.
authors.forename: Myriam
authors.initials: M
authors.lastname: Gorospe
mesh_terms: D000818:Animals; D060565:Argonaute Proteins / Q000235:genetics / Q000378:metabolism; D006801:Humans; D035683:MicroRNAs / Q000235:genetics / Q000378:metabolism; D008928:Mitochondria / Q000235:genetics* / Q000378:metabolism; D062085:RNA, Long Noncoding / Q000235:genetics / Q000378:metabolism; D012341:RNA, Ribosomal, 5S / Q000235:genetics / Q000378:metabolism; D012343:RNA, Transfer / Q000235:genetics / Q000378:metabolism; D022661:RNA, Untranslated / Q000235:genetics / Q000378:metabolism*
chemical_list: D060565:Argonaute Proteins; D035683:MicroRNAs; C544035:RMRP non-coding RNA, human; D062085:RNA, Long Noncoding; D012341:RNA, Ribosomal, 5S; D022661:RNA, Untranslated; D012343:RNA, Transfer