ribosome
Term info
ribosome
goslim_chembl, goslim_generic, goslim_metagenomics, goslim_pir, goslim_plant, goslim_candida, goslim_yeast, goslim_aspergillus
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.
GO:0033279
membrane bound ribosome, free ribosome
cellular_component
ribosomal RNA
GO:0005840
http://purl.obolibrary.org/obo/cl.owl
Term relations
- intracellular non-membrane-bounded organelle
- has part some protein
- has part some ribonucleic acid
- capable of part of some translation