sigma factor activity (Q21199040)
Sigma factors act as the promoter specificity subunit of eubacterial and plant plastid multisubunit RNA polymerases, whose core subunit composition is often described as alpha(2)-beta-beta-prime. ...
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Current Data About sigma factor activity
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aliases sigma transcription factor
DNA-dependent RNA polymerase promoter selection factor
core DNA-dependent RNA polymerase binding promoter specificity activity
GO:0016987
description Sigma factors act as the promoter specificity subunit of eubacterial and plant plastid multisubunit RNA polymerases, whose core subunit composition is often described as alpha(2)-beta-beta-prime. ...

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