MeSH Browser

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
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

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

agonists (AG)

analysis (AN)

antagonists & inhibitors (AI)

biosynthesis (BI)

blood (BL)

cerebrospinal fluid (CF)

chemical synthesis (CS)

chemistry (CH)

classification (CL)

drug effects (DE)

economics (EC)

genetics (GE)

history (HI)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pharmacokinetics (PK)

pharmacology (PD)

physiology (PH)

poisoning (PO)

radiation effects (RE)

standards (ST)

supply & distribution (SD)

therapeutic use (TU)

toxicity (TO)

ultrastructure (UL)

urine (UR)

RNA Precursors MeSH Descriptor Data 2025