Alternative sigma factors for heat shock genes

a) Promoter sequences recognized by 70- and 32- containing RNA polymerase. (b) At elevated temperature, 70 and 24 transcribe rpoH, which encodes 32 that in turn joins the RNA core enzyme to transcribe heat shock genesa) Promoter sequences recognized by 70- and 32- containing RNA polymerase. (b) At elevated temperature, 70 and 24 transcribe rpoH, which encodes 32 that in turn joins the RNA core enzyme to transcribe heat shock genes

(a) Promoter sequences recognized by different sigma factors Promoter sequences —35 / \ —10 Ono—"l Recognized by: 0.32 (b) Events at elevated temperature RNA core enzyme Transcribes heat shock genes.