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Sigma Factor MeSH Descriptor Data 2025


MeSH Heading
Sigma Factor
Tree Number(s)
D12.776.930.800
Unique ID
D012808
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D012808
Annotation
a transcription factor; /‌biosyn /‌physiol permitted
Scope Note
A protein which is a subunit of RNA polymerase. It effects initiation of specific RNA chains from DNA.
Entry Term(s)
Minor Sigma Factor
RNA Polymerase Sigma Factor H
Sigma Element
Sigma Initiation Factor
Sigma Subunit
Registry Numbers
0
Previous Indexing
Bacterial Proteins (1973-1976)
Proteins (1966-1976)
Transcription, Genetic (1973-1976)
Public MeSH Note
91; was see under TRANSCRIPTION FACTORS 1977-90
History Note
91(77); was see under TRANSCRIPTION FACTORS 1977-90
Date Established
1991/01/01
Date of Entry
1976/04/19
Revision Date
2005/06/30
Sigma Factor Preferred
Minor Sigma Factor Narrower
RNA Polymerase Sigma Factor H Narrower
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