The coiled body.
The coiled body is a nuclear organelle that contains snRNPs involved in splicing, the non-snRNP splicing factor U2AF and the nucleolar protein fibrillarin. It is highly conserved in evolution and is present in both animal and plant cells. The coiled body is a dynamic structure that can undergo regulated cycles of assembly and disassembly during interphase and mitosis and it may represent a distinct metabolic compartment within the nucleus.
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European Molecular Biology Laboratory, Meyerhofstrasse 1, Postfach 102209, D6900 Heidelberg, Germany.
Carmo-Fonseca
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