1) Gene expression
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https://www.crosswordclues.com/clue/sigma-factor
A sigma factor (σ factor) is a protein needed only for initiation of RNA synthesis. It is a bacterial transcription initiation factor that enables specific binding of RNA polymerase to gene promoters. The specific sigma factor used to initiate transcription of a given gene will vary, depending on the gene and on the environmental signals needed t...
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http://en.wikipedia.org/wiki/Sigma_factor
(from the article `metabolism`) ...the genetic information has been transcribed. The way in which this selectivity is achieved is not yet fully understood, although it has been ...
Found on
http://www.britannica.com/eb/a-z/s/93
Initiation factor (86 kD) that binds to E. Coli DNA dependent RNA polymerase and promotes attachment to specific initiation sites on DNA. Following attachment, the sigma factor is released. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973
(= s factor) Initiation factor (86 kD) that binds to E. coli DNA-dependent RNA polymerase and promotes attachment to specific initiation sites on DNA. Following attachment, the sigma factor is released.
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http://www.encyclo.co.uk/visitor-contributions.php
Type: Term Definitions: 1. a factor that inhibits the nonspecific DNA binding of RNA polymerase, as well as helping to identify the starting point of transcription; it promotes attachment of the RNA polymerase to specific initiation sites. Synonyms: σ factor
Found on
http://www.medilexicon.com/medicaldictionary.php?t=31793
sigma factor A protein component of RNA polymerase that determines the specific site on DNA where transcription begins.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1958/
No exact match found.
