| Type: | Family | Name: | RNA polymerase sigma factor, SigB/C/D/F, plastid |
| Description: | This entry represents certain plastid RNA polymerase sigma factors, including SigB, SigC, SigD and sigF [, ]. Development of plastids into chloroplasts is triggered by light. The coordination of light-induced plastid gene expression is directed by both nuclear and plastid genomes. Plastid DNA is transcribed by at least two types of RNA polymerase, plastid-encoded RNA polymerase (PEP) and nuclear-encoded RNA polymerase (NEP). Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Sigma factor SigB appears to play a critical role in the coordination of the two genomes for chloroplast development []. | Short Name: | RNA_pol_sigma_SigB/C/D/F |
| DB identifier | Type | Name |
|---|---|---|
| IPR011991 | Domain | Winged helix-turn-helix DNA-binding domain |
| IPR013324 | Domain | RNA polymerase sigma factor, region 3/4 |
| IPR013325 | Domain | RNA polymerase sigma factor, region 2 |
| IPR007627 | Domain | RNA polymerase sigma-70 region 2 |
| IPR007630 | Domain | RNA polymerase sigma-70 region 4 |
| IPR000943 | Domain | RNA polymerase sigma-70 |
| IPR007624 | Domain | RNA polymerase sigma-70 region 3 |
| IPR009042 | Domain | RNA polymerase sigma-70 region 1.2 |
