operonn.
/ˈɒpərɒn/, U.S. /ˈɑpəˌrɑn/ Genetics.
A unit of coordinated gene activity which regulates protein synthesis in prokaryotes, consisting of a linear sequence of structural genes with one or more regulatory regions. Cf. operator n. 9, promoter n. 4c.
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > other genetic structures
messenger1905
transforming principle1944
muton1957
prokaryon1957
recon1957
vector1958
operon1960
R1961
codon1962
replicon1963
regulon1964
promoter1965
promotor1966
transconjugant1974
cassette1977
1960 Q. Rev. Biol. 35 297/2 The entire unit of the operator and the genes whose expression it controls is called the operon.
1961 F. Jacob & J. Monod in Jrnl. Molecular Biol. 3 344 This genetic unit of co-ordinate expression we shall call the ‘operon’.
1971 J. Z. Young Introd. Study Man iii. 59 Each operon is controlled by one or more regulator genes.
1990 Biofactors 2 183/1 Sequence analyses of the chlD locus are consistent with a role for this operon in molybdenum transport.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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n.1960