JSON

ribosome

^ http://purl.obolibrary.org/obo/GO_0005840


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. [ http://openisbn.com/search.php?q=0198506732&isbn=1/ ]

Term info

Subsets

goslim_chembl, goslim_generic, goslim_metagenomics, goslim_pir, prokaryote_subset, goslim_plant, goslim_candida, goslim_yeast, goslim_aspergillus

has related synonym

ribosomal RNA

has alternative id

GO:0033279

has narrow synonym

membrane bound ribosome, free ribosome

has obo namespace

cellular_component

id

GO:0005840

imported from

http://purl.obolibrary.org/obo/cl.owl