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RNA polymerase sigma-F factor Members of this protein family are the RNA polymerase sigma factor F. Sigma-F is specifically and universally a component of the Firmicutes lineage endospore formation program, and is expressed in the forespore to turn on expression of dozens of genes. It is closely homologous to sigma-G, which is also expressed in the forespore. [Transcription, Transcription factors, Cellular processes, Sporulation and germination] |
Jiyao W et al.(2023). "The conserved domain database in 2023.",