A3DC28 · SIGI2_ACET2
- ProteinRNA polymerase sigma factor SigI2
- GenesigI2
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids265 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score3/5
Function
function
Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released (By similarity).
This sigma factor is involved in regulation of cellulosomal genes via an external polysaccharide-sensing mechanism (Probable)
This sigma factor is involved in regulation of cellulosomal genes via an external polysaccharide-sensing mechanism (Probable)
Activity regulation
Negatively regulated by the anti-sigma-I factor RsgI2 (By similarity).
Binding of the polysaccharide substrate to RsgI2 may lead to the release and activation of SigI2 (By similarity).
Binding of the polysaccharide substrate to RsgI2 may lead to the release and activation of SigI2 (By similarity).
Features
Showing features for dna binding.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
DNA binding | 211-230 | H-T-H motif | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | DNA binding | |
Molecular Function | sigma factor activity | |
Biological Process | DNA-templated transcription initiation |
Keywords
- Molecular function
- Biological process
Names & Taxonomy
Protein names
- Recommended nameRNA polymerase sigma factor SigI2
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Bacillota > Clostridia > Eubacteriales > Oscillospiraceae > Acetivibrio
Accessions
- Primary accessionA3DC28
Proteomes
Subcellular Location
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Chain | PRO_0000436516 | 1-265 | RNA polymerase sigma factor SigI2 | ||
Expression
Induction
Up-regulated in the presence of cellulose.
Structure
Sequence
- Sequence statusComplete
- Length265
- Mass (Da)30,744
- Last updated2007-03-20 v1
- Checksum2E5C873D33395AC9
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CP000568 EMBL· GenBank· DDBJ | ABN51507.1 EMBL· GenBank· DDBJ | Genomic DNA |