Anatomy

Spliceosomes

Organelles in which the splicing and excision reactions that remove introns from precursor messenger RNA molecules occur. One component of a spliceosome is five small nuclear RNA molecules (U1, U2, U4, U5, U6) that, working in conjunction with proteins, help to fold pieces of RNA into the right shapes and later splice them into the message.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Organelles in which the splicing and excision reactions that remove introns from precursor messenger RNA molecules occur. One component of a spliceosome is five small nuclear RNA molecules (U1, U2, U4, U5, U6) that, working in conjunction with proteins, help to fold pieces of RNA into the right shapes and later splice them into the message.

MeSH Record

Classification

Broader headings

Related Concepts

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See Also

MeSH Record

Synonyms

1 entry terms
  • Spliceosome

MeSH Record

Aspects Covered

15 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, immunology, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, transplantation, ultrastructure, virology.

MeSH Record

History Note

93

MeSH Record

Previous Indexing

  • Ribonucleoproteins (1986-1992)

MeSH Hierarchy

Tree Number

  1. A11w.284w.430w.106w.279.345.850w

AMA Style

References

  1. National Library of Medicine. Spliceosomes. Medical Subject Headings (MeSH). 2026. Unique ID D017381. http://id.nlm.nih.gov/mesh/2026/D017381
  2. Spliceosomes. In: Wikipedia. https://en.wikipedia.org/wiki/Spliceosome
  3. Spliceosomes. In: Wikidata. https://www.wikidata.org/wiki/Q915868