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GO Related Resource Count : 49,239 |
GO Term Detail GO ID: GO:0016987
Term Information | ||||||||||||||||||
Category | molecular_function | |||||||||||||||||
Name | sigma factor activity | |||||||||||||||||
Synonyms | sigma transcription factor | |||||||||||||||||
Definition | A sigma factor is the promoter specificity subunit of eubacterial-type multisubunit RNA polymerases, those whose core subunit composition is often described as alpha(2)-beta-beta-prime. (This type of multisubunit RNA polymerase complex is known to be found in eubacteria and plant plastids). Although sigma does not bind DNA on its own, when combined with the core to form the holoenzyme, this binds specifically to promoter sequences, with the sigma factor making sequence specific contacts with the promoter elements. The sigma subunit is released from the elongating form of the polymerase and is thus free to act catalytically for multiple RNA polymerase core enzymes. | |||||||||||||||||
Term Comment | ||||||||||||||||||
AmiGO 2 | GO:0016987 | |||||||||||||||||
Associated Resources |
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163,018 items | Page: 1 / 8151 1 | 2 | 3 | 4 | 5 | 6 | 7 | 1 - 20 / 163018 |
Related Gene Product List | ||||
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Symbol | Full name | Species | Data source | Evidence |
1 | Gp1 | Sphingomonas phage PAU | InterPro | IEA |
103 | Uncharacterized protein | Halovirus HCTV-1 | InterPro | IEA |
103 | Uncharacterized protein | Halovirus HCTV-5 | InterPro | IEA |
103R | Uncharacterized protein | Invertebrate iridovirus 22 | InterPro | IEA |
1075 | RNA polymerase sigma factor 54 | Moorella glycerini | InterPro | IEA |
1076 | RNA polymerase sigma factor 54 | Moorella glycerini | InterPro | IEA |
108 | Uncharacterized protein | Halovirus HVTV-1 | InterPro | IEA |
109R | Uncharacterized protein | Invertebrate iridescent virus 22 | InterPro | IEA |
112R | Uncharacterized protein | Invertebrate iridovirus 25 | InterPro | IEA |
12 | Gp12 | Streptomyces phage phiC31 | InterPro | IEA |
12 | Gp12 | Streptomyces phage phiBT1 | InterPro | IEA |
1285 | RNA polymerase sigma factor, region 3/4 | Syntrophomonas zehnderi OL-4 | InterPro | IEA |
1354 | RNA polymerase sigma-I type | Moorella glycerini | InterPro | IEA |
UniProt | IEA | |||
1362 | RNA polymerase sigma-B/F/G type | Syntrophomonas zehnderi OL-4 | InterPro | IEA |
UniProt | IEA | |||
137 | RNA polymerase sigma factor | Moorella glycerini | InterPro | IEA |
UniProt | IEA | |||
1546 | RNA polymerase sigma factor | Moorella glycerini | InterPro | IEA |
UniProt | IEA | |||
1554 | RNA polymerase sigma factor | Syntrophomonas zehnderi OL-4 | InterPro | IEA |
UniProt | IEA | |||
1555 | RNA polymerase sigma factor | Syntrophomonas zehnderi OL-4 | InterPro | IEA |
UniProt | IEA | |||
1599 | RNA polymerase sigma factor, FliA/WhiG | Syntrophomonas zehnderi OL-4 | InterPro | IEA |
UniProt | IEA | |||
16-3p086 | p086 | Rhizobium phage 16-3 | InterPro | IEA |
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