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RNA Precursors MeSH Descriptor Data 2025


MeSH Heading
RNA Precursors
Tree Number(s)
D13.400.730
D13.444.735.640
Unique ID
D012322
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D012322
Annotation
coordinate with specific RNA
Scope Note
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.
Entry Term(s)
Pre-mRNA
Pre-rRNA
Pre-snRNA
Pre-tRNA
Precursor RNA
Primary RNA Transcript
Primary Transcript, RNA
RNA Precursor
RNA, Messenger, Precursors
RNA, Ribosomal, Precursors
RNA, Small Nuclear, Precursors
RNA, Transfer, Precursors
mRNA Precursor
rRNA Precursor
snRNA Precursor
tRNA Precursor
Registry Numbers
0
Previous Indexing
Nucleic Acid Precursors (1975-1987)
Nucleic Acids (1966-1974)
Public MeSH Note
88
History Note
88
Date Established
1988/01/01
Date of Entry
1987/05/05
Revision Date
2013/07/09
RNA Precursors Preferred
RNA, Ribosomal, Precursors Narrower
RNA, Messenger, Precursors Narrower
RNA, Transfer, Precursors Narrower
RNA Precursor Narrower
Primary RNA Transcript Narrower
RNA, Small Nuclear, Precursors Narrower
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