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.

Year introduced: 1993

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Tree Number(s): A11.284.430.106.279.345.850

MeSH Unique ID: D017381

Entry Terms:

• Spliceosome

Previous Indexing:

• Ribonucleoproteins (1986-1992)

See Also:

• RNA Splicing
• RNA Splicing Factors

All MeSH Categories
Anatomy Category
Cells
Cellular Structures
Intracellular Space
Cell Nucleus
Cell Nucleus Structures
Intranuclear Space
Spliceosomes