GO Term : GO:0005730 nucleolus Gene Ontology

Description  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.
Namespace  cellular_component
Obsolete  false

58 Data Sets

Trail: GOTerm

1 Ontology

Trail: GOTerm

1316 Ontology Annotations

Trail: GOTerm

15 Parents

Trail: GOTerm

43 Relations

Trail: GOTerm

0 Synonyms

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