GO:0016987: sigma factor activity (Molecular function)

"Sigma factors act as the promoter specificity subunit of eubacterial and plant plastid multisubunit RNA polymerases, whose core subunit composition is often described as alpha(2)-beta-beta-prime. Although sigma does not bind DNA on its own, when combined with the core to form the holoenzyme, the sigma factor binds specifically to promoter elements. The sigma subunit is released once elongation begins." [GOC:txnOH-2018]


There are 177 sequences with this label.

Enriched clusters
Name Species % in cluster p-value corrected p-value action
Cluster_27 Solanum tuberosum Agria 1.24 % 0.000742 0.009866
Cluster_88 Solanum tuberosum Agria 2.38 % 0.000203 0.00643
Sequences (177) (download table)

InterPro Domains

GO Terms

Family Terms