Concept information
Preferred term
RNA precursors
Type
-
Chemical
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.
Source: Medical Subject Headings 2014
Type: Concept definition
Broader concept
Synonyms
- mRNA precursor
- rRNA precursor
- snRNA precursor
- tRNA precursor
In other languages
-
Spanish
URI
https://lod.nal.usda.gov/nalt/217621
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