FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term ribosome ID (Ontology) GO:0005840 (Gene Ontology)
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.[ ISBN:0198506732 ]
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       1
Genes (FBgn)  GO_CELLULAR_COMPONENT     234
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Constructs
 ribosome (all annotations which use CV term, excluding "NOT" statements)       1    234       --
     colocalizes_with | ribosome       --       1       --
     is_active_in | ribosome       --       7       --
     located_in | ribosome       --     228       --
     ribosome | absent | adult stage       2       --       2
     ribosome | second instar larval stage       1       --       --
Spanning Tree (Parents/Children)
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membraneless organelle___
intracellular organelle__|
                         intracellular membraneless organelle
                          |__ribosome  314 rec.
                              |__cytosolic ribosome 204 rec.
                              |__organellar ribosome 90 rec.
                                  |__mitochondrial ribosome 90 rec.
                                  |__plastid ribosome(+)
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Is a intracellular membraneless organelle
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Synonyms
  • "free ribosome" NARROW
    "membrane bound ribosome" NARROW
    "ribosomal RNA" RELATED
Secondary IDs
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NIF_Subcellular:sao1429207766
Wikipedia:Ribosome