HAMAP rule MF_01322
General rule information
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| PURL | https://purl.expasy.org/hamap/rule/MF_01322 |
| Accession | MF_01322 |
| Dates | 28-FEB-2005 (Created)
21-MAR-2025 (Last updated, Version 29) |
| Name | RNApol_bact_RpoC |
| Scope(s) |
Bacteria |
| Template(s) | P0A8T7; Q9KWU6; [ Recover all ] |
| Triggered by |
HAMAP; MF_01322 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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| Identifier | RPOC |
| Protein name | RecName: Full=DNA-directed RNA polymerase subunit beta'; Short=RNAP subunit beta'; EC=2.7.7.6; AltName: Full=RNA polymerase subunit beta'; AltName: Full=Transcriptase subunit beta'; |
| Gene name | Name=rpoC; |
Comments
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| FUNCTION | DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. |
| CATALYTIC ACTIVITY | Reaction=RNA(n) + a ribonucleoside 5'-triphosphate = RNA(n+1) + diphosphate; Xref=Rhea:RHEA:21248, Rhea:RHEA-COMP:14527, Rhea:RHEA- COMP:17342, ChEBI:CHEBI:33019, ChEBI:CHEBI:61557, ChEBI:CHEBI:140395; EC=2.7.7.6; |
| case <FTGroup:2> | |
| COFACTOR | Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Note=Binds 1 Mg(2+) ion per subunit.; |
| end case | |
| case <FTGroup:1> and <FTGroup:3> | |
| COFACTOR | Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Note=Binds 2 Zn(2+) ions per subunit.; |
| end case | |
| SUBUNIT | The RNAP catalytic core consists of 2 alpha, 1 beta, 1 beta' and 1 omega subunit. When a sigma factor is associated with the core the holoenzyme is formed, which can initiate transcription. |
| SIMILARITY | Belongs to the RNA polymerase beta' chain family. |
Keywords
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| case (<OC:Escherichia> or <OC:Shigella>) and <FT:1> | |
| Acetylation | |
| end case | |
| case <FTGroup:1> or <FTGroup:2> or <FTGroup:3> | |
| Metal-binding | |
| end case | |
| case <FTGroup:2> | |
| Magnesium | |
| end case | |
| Transcription | |
| Transferase | |
| Nucleotidyltransferase | |
| DNA-directed RNA polymerase | |
| case <FTGroup:1> or <FTGroup:3> | |
| Zinc | |
| end case | |
Gene Ontology
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| GO:0003677; Molecular function:DNA binding | |
| GO:0003899; Molecular function:DNA-directed RNA polymerase activity | |
| case <FTGroup:2> | |
| GO:0000287; Molecular function:magnesium ion binding | |
| end case | |
| GO:0006351; Biological process:DNA-templated transcription | |
| case <FTGroup:1> or <FTGroup:3> | |
| GO:0008270; Molecular function:zinc ion binding | |
| end case | |
Cross-references
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| Pfam | PF04997; RNA_pol_Rpb1_1; 1; |
| Pfam | PF00623; RNA_pol_Rpb1_2; 1-2; |
| Pfam | PF04983; RNA_pol_Rpb1_3; 1; |
| Pfam | PF05000; RNA_pol_Rpb1_4; 1; |
| Pfam | PF04998; RNA_pol_Rpb1_5; 1-2; |
| NCBIfam | TIGR02386; rpoC_TIGR; 1; |
Features
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| From: RPOC_ECOLI (P0A8T7) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| BINDING | 70 | 70 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="1" |
C | 1 | |||||||
| BINDING | 72 | 72 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="1" |
C | 1 | |||||||
| BINDING | 85 | 85 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="1" |
C | 1 | |||||||
| BINDING | 88 | 88 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="1" |
C | 1 | |||||||
| BINDING | 460 | 460 | /ligand="Mg(2+)" /ligand_id="ChEBI:CHEBI:18420" |
D | 2 | |||||||
| BINDING | 462 | 462 | /ligand="Mg(2+)" /ligand_id="ChEBI:CHEBI:18420" |
D | 2 | |||||||
| BINDING | 464 | 464 | /ligand="Mg(2+)" /ligand_id="ChEBI:CHEBI:18420" |
D | 2 | |||||||
| BINDING | 814 | 814 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="2" |
C | 3 | |||||||
| BINDING | 888 | 888 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="2" |
C | 3 | |||||||
| BINDING | 895 | 895 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="2" |
C | 3 | |||||||
| BINDING | 898 | 898 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="2" |
C | 3 | |||||||
| case <OC:Escherichia> or <OC:Shigella> | ||||||||||||
| MOD_RES | 983 | 983 | /note="N6-acetyllysine" | K | ||||||||
| end case | ||||||||||||
Additional information
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| Size range | 1135-1690 amino acids |
| Related rules |
MF_01323 MF_01324 |
| Fusion | Nter: MF_01321 (rpoB); <Unknown> Cter: None |
| Comments | Fused with rpoB in Helicobacter species and least some Wolbachia, but not in other epsilon proteobateria. In Acholeplasmataceae there is an unknown N-terminal extension of about 110 amino acids. In cyanobacteria and chloroplasts this protein is split into two parts. The N-terminus is known as gamma in cyanobacteria and beta' in chloroplasts (MF_01323), while the C-terminus is known as beta' in cyanobacteria and beta'' in chloroplasts (MF_01324). Many Mycoplasma only have 1 Zn ion-binding site. |