4x8k

Structural highlights

Function

[SIGA_MYCTO] Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the primary sigma factor during exponential growth.[HAMAP-Rule:MF_00963] [RBPA_MYCTO] Binds to RNA polymerase (RNAP), stimulating transcription from principal, but not alternative sigma factor promoters.