Which sigma factor is bound to Rse A?(a) σ^D(b) σ^G(c) σ^F(d) σ^EThe question was asked during an online exam.I'd like to ask this question from Transcription in Prokaryotes : Sigma Factor topic in section Gene Expression : Transcription Prokaryotes of Cytogenetics

Which sigma factor is bound to Rse A?(a) σ^D(b) σ^G(c) σ^F(d) σ^ET

1.	Which sigma factor is bound to Rse A?(a) σ^D(b) σ^G(c) σ^F(d) σ^EThe question was asked during an online exam.I'd like to ask this question from Transcription in Prokaryotes : Sigma Factor topic in section Gene Expression : Transcription Prokaryotes of Cytogenetics
Answer» The CORRECT option is (d) σ^E Explanation: Rse A BINDS σ^E and PREVENTS it from activating transcription. Under extreme conditions this binding is broken by cleavage of c terminal cytosolic tail of transmambrane Rse A, THUS RELEASING σ^E for transcribing necessary genes.

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