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Term Data

Source Ontology
Gene Ontology
Accession
GO:0005840
Term Name
ribosome
Database Cross Reference
Wikipedia:Ribosome
NIF_Subcellular:sao1429207766
Definition
An 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.
Has Alternative Id
GO:0033279
Has Obo Namespace
cellular_component
Id
GO:0005840
Synonyms
free ribosome
membrane bound ribosome
ribosomal RNA
Link
http://amigo.geneontology.org/cgi-bin/amigo/go.cgi?view=details&query=GO:0005840
Usage
Search for pages annotated with this term

Term Relationship

Parents (1) Siblings (20) Children (3)
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