Editing status of <i>mat-r</i> transcripts in mitochondria from two plant species

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dc.contributor.authorBégu, D
dc.contributor.authorMercado, A
dc.contributor.authorFarré, JC
dc.contributor.authorMoenne, A
dc.contributor.authorHoluigue, L
dc.contributor.authorAraya, A
dc.contributor.authorJordana, X
dc.date.accessioned2025-01-21T01:32:40Z
dc.date.available2025-01-21T01:32:40Z
dc.date.issued1998
dc.description.abstractThe intronic mat-r ORF encodes a protein with significant homology to retroviral reverse transcriptases. Here, we describe the nucleotide sequence of potato mat-r and study the editing status of mat-r transcripts in two systems, potato and wheat, where the mat-r ORF is part of the trans-introns but in two different configurations relative to nadl exons d and e. In potato and wheat, 13 and 15 C-to-U transitions respectively were observed. Most transcripts were partially edited, but potato transcripts were edited more efficiently than wheat transcripts. As in functional mitochondrial genes, RNA editing increased the similarity between plant mat-r proteins and their homologous non-plant counterparts. Interestingly, editing of mat-r was clustered in the reverse-transcriptase (RT) and the maturase (X) domains, two well defined regions having known functions in other systems. These results, together with the integrity and sequence conservation of mat-r, strongly suggest that the encoded protein plays a functional role in plant mitochondria.
dc.fuente.origenWOS
dc.identifier.eissn1432-0983
dc.identifier.issn0172-8083
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97303
dc.identifier.wosidWOS:000074882600005
dc.issue.numero6
dc.language.isoen
dc.pagina.final428
dc.pagina.inicio420
dc.revistaCurrent genetics
dc.rightsacceso restringido
dc.subjectRNA editing
dc.subjectplant mitochondria
dc.subjectmaturase
dc.subjectreverse transcriptase
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleEditing status of <i>mat-r</i> transcripts in mitochondria from two plant species
dc.typeartículo
dc.volumen33
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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