A0A1B1QC91 · A0A1B1QC91_9ASPA
- ProteinDNA-directed RNA polymerase subunit beta
- GenerpoB
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids1070 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
Catalytic activity
- RNA(n) + a ribonucleoside 5'-triphosphate = RNA(n+1) + diphosphate
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Cellular Component | DNA-directed RNA polymerase complex | |
Molecular Function | DNA binding | |
Molecular Function | DNA-directed 5'-3' RNA polymerase activity | |
Molecular Function | ribonucleoside binding | |
Biological Process | DNA-templated transcription |
Keywords
- Molecular function
- Biological process
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameDNA-directed RNA polymerase subunit beta
- EC number
- Alternative names
Gene names
Encoded on
- Chloroplast
Organism names
- Organism
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > Liliopsida > Asparagales > Orchidaceae > Epidendroideae > Neottieae > Neottia
Accessions
- Primary accessionA0A1B1QC91
Subcellular Location
Interaction
Subunit
In plastids the minimal PEP RNA polymerase catalytic core is composed of four subunits: alpha, beta, beta', and beta''. When a (nuclear-encoded) sigma factor is associated with the core the holoenzyme is formed, which can initiate transcription.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Domain | 128-315 | RNA polymerase Rpb2 | |||
Domain | 376-444 | RNA polymerase Rpb2 | |||
Domain | 580-979 | DNA-directed RNA polymerase subunit 2 hybrid-binding | |||
Domain | 981-1056 | RNA polymerase Rpb2 | |||
Sequence similarities
Belongs to the RNA polymerase beta chain family.
Family and domain databases
Sequence
- Sequence statusComplete
- Length1,070
- Mass (Da)120,885
- Last updated2016-11-02 v1
- ChecksumB451ABD54B2E7707
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
KU551269 EMBL· GenBank· DDBJ | ANT72861.1 EMBL· GenBank· DDBJ | Genomic DNA |