WormBase Tree Display for GO_term: GO:0005840

GO:0005840 Name: ribosome
  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.
  Alt_id: GO:0033279
  Synonym: Narrow: free ribosome
      membrane bound ribosome
    Related: ribosomal RNA
  Status: Valid
  Type: Cellular_component
  Child: Instance: GO:0000313
      GO:0022626
      GO:0042788
    Component: GO:0044391
  Parent: Instance_of: GO:0043232
  Attributes_of: Motif (217)
    Index: Ancestor: GO:0005575
        GO:0005622
        GO:0043226
        GO:0043228
        GO:0043229
        GO:0043232
        GO:0110165
      Descendant (19)
    Expr_pattern: Expr15107
      Expr15108
    GO_annotation (1487)
  Version: Gene Ontology releases/2023-11-15