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Ontology Browser
Term:
Parent Terms Term With Siblings Child Terms
arciform density 
aster +   
bacterial microcompartment +  
bacterial nucleoid +  
blepharoplast 
centriole  
chlorosome +  
chromocenter +   
chromosome +   
contractile muscle fiber +   
contractile vacuole complex +  
crystalloid 
cytoskeleton +   
deuterosome  
dynein axonemal particle  
encapsulin nanocompartment 
gas vesicle +  
goblet cell theca 
kinetochore +   
lipid droplet +   
mitochondrial cloud 
mitochondrial nucleoid +   
nematocyst 
nuclear chromosome +   
nuclear exosome (RNase complex) +   
nuclear periphery +   
nuclear proteasome complex +   
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. 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.
nucleolus-like body 
nucleoplasm +   
perinucleolar compartment  
plastid nucleoid +  
podosome +   
postsynaptic specialization, intracellular component +   
proteasome storage granule  
protein aggregate center 
pyrenoid 
ribonucleoprotein granule +   
ribosome +   
spectrosome 
spindle +   
synaptic ribbon 
thylakoid +  
transmembrane actin-associated (TAN) line 
ventral disc +  

Synonyms
Xrefs: NIF_Subcellular:sao1820400233 ;   Wikipedia:Nucleolus
Definition Sources: ISBN:0198506732

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