Term Details for "nucleolus" (GO:0005730) (original) (raw)

Accession

GO:0005730

Name

nucleolus

Ontology

cellular_component

Synonyms

None

Alternate IDs

None

Definition

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.Source: ISBN:0198506732

Comment

None

History

See term history for GO:0005730 at QuickGO

Chem. react.

None

Subset

goslim_chembl

goslim_drosophila

goslim_generic

goslim_plant

goslim_yeast

goslim_candida

goslim_pir

Link to all genes and gene products annotated to nucleolus (excluding "regulates").

Link to all direct and indirect annotations to nucleolus (excluding "regulates").

Link to all direct and indirect annotations download (limited to first 10,000) for nucleolus (excluding "regulates").