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Operon

In genetics, an operon is a functioning unit of DNA containing a cluster of genes under the control of a single promoter. The genes are transcribed together into an mRNA strand and either translated together in the cytoplasm, or undergo splicing to create monocistronic mRNAs that are translated separately, i.e. several strands of mRNA that each encode a…

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Overview

History

As a unit of transcription

Operons versus clustering of prokaryotic genes

General structure

Regulation

The lac operon

The trp operon

Predicting the number and organization of operons

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Operon

Nodes78
Edges77
Triples92
Avg. degree1.97
Density0.025641
Components1

How this topic connects Entity context

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Operon

Top relations

related to history · 16
Operon → André Michel Lwoff, François Jacob, French Academy, From, Jacques Monod, Later, Medicine, Nevertheless, Nobel Prize, Physiology, Proceedings, Sciences, The, Therefore, This, Today
related to General structure · 13
Operon → An, DNA, In, In RNA, It, O1, O2, O3, Operator, Promoter, RNA, Structural, The
related to Operons response to genome-wide stresses · 9
Operon → Bacillus, Corynebacterium, For, Helicobacter, However, Next, Primary, They, What
related to Operons versus clustering of prokaryotic genes · 9
Operon → All, Archaea, Asgard, Gene, In, OFF, ON, To, Usually
related to The trp operon · 9
Operon → Also, Discovered, In, It, Jacques Monod, RNA, This, Trp, While
related to overview · 7
Operon → According, An, DNA, Drosophila, It, Operons, The
related to As a unit of transcription · 6
Operon → An, Close, DNA, However, RNA, Upstream
related to The lac operon · 6
Operon → Escherichia, It, Lactose, So, The, This
related to Predicting the number and organization of operons · 4
Operon → As, Longer, One, The
is a · 3
Operon → functioning unit of DNA containing a cluster of genes under the control of a single promoter, negatively controlled inducible operon, type of gene regulation that enables organisms to regulate the expression of various genes depending on environmental conditions

Important terminology Word statistics

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Important terminology

genes operons operator repressor protein gene promoter transcription dna lac trp also structural single mrna control first bind regulatory example

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Operonis afunctioning unit of DNA containing a cluster of genes under the control of a single promoter0.90text
Operonis atype of gene regulation that enables organisms to regulate the expression of various genes depending on environmental conditions0.90text
Operonis anegatively controlled inducible operon0.90text
bacteriophagesinstance ofwhile eukaryotic operons lead to monocistronic mRNAs.Operons are also found in viruses0.80text
C. elegansinstance ofincluding nematodes0.80text
the fruit flyinstance ofincluding nematodes0.80text
Drosophila melanogaster. rRNA genes often exist in operons that have been found in a range of eukaryotes including chordatesinstance ofincluding nematodes0.80text
Operonrelated to As a unit of transcriptionAn0.60section
Operonrelated to As a unit of transcriptionHowever0.60section
Operonrelated to As a unit of transcriptionUpstream0.60section
Operonrelated to As a unit of transcriptionRNA0.60section
Operonrelated to As a unit of transcriptionClose0.60section

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