YRC Logo
PROTEIN SEARCH:
Descriptions Names[Advanced Search]

Any constituent part of the nucleus, a membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. A macromolecular complex containing both protein and RNA molecules. A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome. Any complex of pre-rRNAs, ribosomal proteins, and associated proteins formed during ribosome biogenesis. Any constituent part of a nucleolus, a small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Any complex of pre-rRNAs, ribosomal proteins, and associated proteins formed in the nucleolus during ribosome biogenesis.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: nucleolar preribosome
Acc: GO:0030685
Aspect: Cellular Component
Desc: Any complex of pre-rRNAs, ribosomal proteins, and associated proteins formed in the nucleolus during ribosome biogenesis.
Proteins in PDR annotated with:
   This term: 1 [Search]
   Term or descendants: 1 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0030685 - nucleolar preribosome (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle