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GO_term: GO:0005840   

GO:0005840DefinitionAn intracellular organelle, about 200 A in diameter, consisting of RNA and protein. It is the site of protein biosynthesis resulting from translation of messenger RNA (mRNA). It consists of two subunits, one large and one small, each containing only protein and RNA. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, mitochondria, and chloroplasts have characteristically distinct ribosomal proteins.
Termribosome
TypeCellular_component
Child Instance (5)
Component GO:0015934
GO:0015935
Parent Instance_of GO:0030529
GO:0043232
Component_ofGO:0005737
Attributes_of Motif (119)
Gene (143)
CDS (158)
Index Ancestor (30)
Descendent GO:0000311
GO:0000312
GO:0000313
GO:0000314
GO:0000315
GO:0005761
GO:0005762
GO:0005763
GO:0005830
GO:0009281
GO:0009282
GO:0030498
GO:0009283
GO:0030499
GO:0005842
GO:0005843
GO:0009547
GO:0005840
GO:0015934
GO:0042788
GO:0015935
GO:0030871
GO:0030872
GO:0030873
GO:0043253