"Sigma Factor" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
A protein which is a subunit of RNA polymerase. It effects initiation of specific RNA chains from DNA.
| Descriptor ID |
D012808
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| MeSH Number(s) |
D12.776.930.800
|
| Concept/Terms |
Sigma Factor- Sigma Factor
- Factor, Sigma
- Sigma Subunit
- Subunit, Sigma
- Sigma Initiation Factor
- Factor, Sigma Initiation
- Initiation Factor, Sigma
- Sigma Element
|
Below are MeSH descriptors whose meaning is more general than "Sigma Factor".
Below are MeSH descriptors whose meaning is more specific than "Sigma Factor".
This graph shows the total number of publications written about "Sigma Factor" by people in this website by year, and whether "Sigma Factor" was a major or minor topic of these publications.
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Below are the most recent publications written about "Sigma Factor" by people in Profiles.
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Chaney M, Grande R, Wigneshweraraj SR, Cannon W, Casaz P, Gallegos MT, Schumacher J, Jones S, Elderkin S, Dago AE, Morett E, Buck M. Binding of transcriptional activators to sigma 54 in the presence of the transition state analog ADP-aluminum fluoride: insights into activator mechanochemical action. Genes Dev. 2001 Sep 01; 15(17):2282-94.
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Casaz P, Gallegos MT, Buck M. Systematic analysis of sigma54 N-terminal sequences identifies regions involved in positive and negative regulation of transcription. J Mol Biol. 1999 Sep 17; 292(2):229-39.
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Cannon W, Gallegos MT, Casaz P, Buck M. Amino-terminal sequences of sigmaN (sigma54) inhibit RNA polymerase isomerization. Genes Dev. 1999 Feb 01; 13(3):357-70.
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Casaz P, Buck M. Region I modifies DNA-binding domain conformation of sigma 54 within the holoenzyme. J Mol Biol. 1999 Jan 15; 285(2):507-14.
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Casaz P, Buck M. Probing the assembly of transcription initiation complexes through changes in sigmaN protease sensitivity. Proc Natl Acad Sci U S A. 1997 Oct 28; 94(22):12145-50.