Cajal bodies: where form meets function
10.1002/wrna.1139
Crossref journal-article
Wiley
WIREs RNA (311)
Abstract

AbstractThe cell nucleus contains dozens of subcompartments that separate biochemical processes into confined spaces. Cajal bodies (CBs) were discovered more than 100 years ago, but only extensive research in the past decades revealed the surprising complexity of molecular and cellular functions taking place in these structures. Many protein and RNA species are modified and assembled within CBs, which have emerged as a meeting place and factory for ribonucleoprotein (RNP) particles involved in splicing, ribosome biogenesis and telomere maintenance. Recently, a distinct structure near histone gene clusters—the Histone locus body (HLB)—was discovered. Involved in histone mRNA 3′‐end formation, HLBs can share several components with CBs. Whether the appearance of distinct HLBs is simply a matter of altered affinity between these structures or of an alternate mode of CB assembly is unknown. However, both structures share basic assembly properties, in which transcription plays a decisive role in initiation. After this seeding event, additional components associate in random order. This appears to be a widespread mechanism for body assembly. CB assembly encompasses an additional layer of complexity, whereby a set of pre‐existing substructures can be integrated into mature CBs. We propose this as a multi‐seeding model of CB assembly. WIREs RNA 2013, 4:17–34. doi: 10.1002/wrna.1139This article is categorized under: RNA Interactions with Proteins and Other Molecules > Protein–RNA Interactions: Functional Implications RNA Processing > 3' End Processing RNA Export and Localization > RNA Localization

Bibliography

Machyna, M., Heyn, P., & Neugebauer, K. M. (2012). Cajal bodies: where form meets function. WIREs RNA, 4(1), 17–34. Portico.

Authors 3
  1. Martin Machyna (first)
  2. Patricia Heyn (additional)
  3. Karla M. Neugebauer (additional)
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Dates
Type When
Created 12 years, 10 months ago (Oct. 5, 2012, 10:12 a.m.)
Deposited 1 year, 11 months ago (Sept. 25, 2023, 12:16 a.m.)
Indexed 8 hours, 34 minutes ago (Sept. 4, 2025, 9:26 a.m.)
Issued 12 years, 10 months ago (Oct. 5, 2012)
Published 12 years, 10 months ago (Oct. 5, 2012)
Published Online 12 years, 10 months ago (Oct. 5, 2012)
Published Print 12 years, 8 months ago (Jan. 1, 2013)
Funders 0

None

@article{Machyna_2012, title={Cajal bodies: where form meets function}, volume={4}, ISSN={1757-7012}, url={http://dx.doi.org/10.1002/wrna.1139}, DOI={10.1002/wrna.1139}, number={1}, journal={WIREs RNA}, publisher={Wiley}, author={Machyna, Martin and Heyn, Patricia and Neugebauer, Karla M.}, year={2012}, month=oct, pages={17–34} }