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Lac Repressors MeSH Descriptor Data 2025


MeSH Heading
Lac Repressors
Tree Number(s)
D12.776.097.521
D12.776.260.703.600
D12.776.930.780.781
Unique ID
D056968
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D056968
Scope Note
Bacterial repressor proteins that bind to the LAC OPERON and thereby prevent the synthesis of proteins involved in catabolism of LACTOSE. When lactose levels are high lac repressors undergo an allosteric change that causes their release from the DNA and the resumption of lac operon transcription.
Entry Term(s)
Lac Repressor
LacI Proteins
Public MeSH Note
2010; see REPRESSOR PROTEINS 1979-2009
History Note
2010; use REPRESSOR PROTEINS 1979-2009
Date Established
2010/01/01
Date of Entry
2009/07/06
Revision Date
2015/06/29
Lac Repressors Preferred
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