Rabbit anti-Rhodopseudomonas palustris RNA polymerase sigma E (C-terminal) polyclonal antibody for WB, ELISA. Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Sigma E is a35kDa subunit of the E.coli RNA polymerase and is involved in heat shock and oxidative stress response; it i