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Keyword - Sigma factor (KW-0731)

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Initiation factors that bind to bacterial DNA-dependent RNA polymerases and promote attachment to specific initiation sites on DNA. Following attachment, the sigma factor is released.


Molecular function

Gene Ontology


regulation of transcription, DNA-templated [ GO:0006355 ]
sigma factor activity [ GO:0016987 ]


TranscriptionTranscription regulationMolecular functionSigma factorBiological process
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