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Concept Breadcrumbs

Preferred Term:

RNA precursors

Definition:
RNA transcripts of the DNA that are in some unfinished stage of post-transcriptional processing (RNA processing, post-transcriptional) required for function. RNA precursors may undergo several steps of RNA splicing during which the phosphodiester bonds at exon-intron boundaries are cleaved and the introns are excised. Consequently a new bond is formed between the ends of the exons. Resulting mature RNAs can then be used; for example, mature mRNA (RNA, messenger) is used as a template for protein production.
Concept Schemes:
NALT Full
Broader Concept:
Entry Terms:
  • rRNA precursor
  • snRNA precursor
  • mRNA precursor
  • tRNA precursor
URI:
https://lod.nal.usda.gov/nalt/217621
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RDF/XMLCreated 2014-06-04, last modified 2017-03-24