EC 2.7.7.6: DNA-directed RNA polymerase
Reaction catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Systematic name:
Nucleoside-triphosphate:RNA nucleotidyltransferase (DNA-directed)
Alternative Name(s):
- C RNA formation factors
- C ribonucleic acid formation factors
- DNA-dependent RNA nucleotidyltransferase
- DNA-dependent RNA polymerase
- DNA-dependent ribonucleate nucleotidyltransferase
- Deoxyribonucleic acid-dependent ribonucleic acid polymerase
- RNA nucleotidyltransferase
- RNA nucleotidyltransferase (DNA-directed)
- RNA polymerase
- RNA polymerase I
- RNA polymerase II
- RNA polymerase III
- RNA transcriptase
- Ribonucleate nucleotidyltransferase
- Ribonucleate polymerase
- Ribonucleic acid nucleotidyltransferase
- Ribonucleic acid polymerase
- Ribonucleic acid transcriptase
- Ribonucleic polymerase
- Ribonucleic transcriptase
- Transcriptase
GO terms
Biochemical function:
Biological process:
Cellular component:
Sequence families
Protein families (Pfam)
InterPro annotations
IPR006591
Domain description:
RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4
Occurring in:
Occurring in:
IPR029040
Domain description:
RNA polymerase subunit RPABC4/transcription elongation factor Spt4
Occurring in:
Occurring in:
IPR008193
Domain description:
DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved site
Occurring in:
Occurring in:
IPR009025
Domain description:
DNA-directed RNA polymerase, RBP11-like dimerisation domain
Occurring in:
Occurring in:
IPR020708
Domain description:
DNA-directed RNA polymerase, 14-18kDa subunit, conserved site
Occurring in:
Occurring in:
IPR001514
Domain description:
DNA-directed RNA polymerase, 30-40kDa subunit, conserved site
Occurring in:
Occurring in:
IPR037033
Domain description:
DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily
Occurring in:
Occurring in:
IPR007120
Domain description:
DNA-directed RNA polymerase, subunit 2, hybrid-binding domain
Occurring in:
Occurring in:
Structure domains
CATH domains
3.30.1360.10
Class:
Alpha Beta
Architecture:
2-Layer Sandwich
Topology:
Gyrase A; domain 2
Homology:
RNA polymerase, RBP11-like subunit
Occurring in:

![The deposited structure of PDB entry <span class='highlight'>4qiw</span> contains 2 copies of CATH domain <span class='highlight'>3.30.1360.10 (Gyrase A; domain 2)</span> in <span class='highlight'>DNA-directed RNA polymerase subunit Rpo11</span>. Showing 1 copy in chain <span class='highlight'>I [auth L]</span>. The deposited structure of PDB entry 4qiw contains 2 copies of CATH domain 3.30.1360.10 (Gyrase A; domain 2) in DNA-directed RNA polymerase subunit Rpo11. Showing 1 copy in chain I [auth L].](https://www.ebi.ac.uk/pdbe/static/entry/4qiw_9_L_CATH_3.30.1360.10_image-200x200.png)
2.40.270.10
Class:
Mainly Beta
Architecture:
Beta Barrel
Topology:
Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; Domain 6
Homology:
DNA-directed RNA polymerase, subunit 2, domain 6
Occurring in:

2.40.50.150
Class:
Mainly Beta
Architecture:
Beta Barrel
Topology:
OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homology:
OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Occurring in:

1.10.274.100
Class:
Mainly Alpha
Architecture:
Orthogonal Bundle
Topology:
Enzyme I; Chain A, domain 2
Homology:
RNA polymerase Rpb1, domain 3
Occurring in:

2.40.40.20
Class:
Mainly Beta
Architecture:
Beta Barrel
Topology:
Barwin-like endoglucanases
Homology:
Barwin-like endoglucanases
Occurring in:

2.20.28.30
Class:
Mainly Beta
Architecture:
Single Sheet
Topology:
Rubrerythrin, domain 2
Homology:
RNA polymerase ii, chain L
Occurring in:
![The deposited structure of PDB entry <span class='highlight'>4qiw</span> contains 2 copies of CATH domain <span class='highlight'>2.20.28.30 (Rubrerythrin, domain 2)</span> in <span class='highlight'>DNA-directed RNA polymerase subunit Rpo12</span>. Showing 1 copy in chain <span class='highlight'>K [auth P]</span>. The deposited structure of PDB entry 4qiw contains 2 copies of CATH domain 2.20.28.30 (Rubrerythrin, domain 2) in DNA-directed RNA polymerase subunit Rpo12. Showing 1 copy in chain K [auth P].](https://www.ebi.ac.uk/pdbe/static/entry/4qiw_11_P_CATH_2.20.28.30_image-200x200.png)
1.10.10.60
Class:
Mainly Alpha
Architecture:
Orthogonal Bundle
Topology:
Arc Repressor Mutant, subunit A
Homology:
Homeodomain-like
Occurring in:
![The deposited structure of PDB entry <span class='highlight'>4qiw</span> contains 2 copies of CATH domain <span class='highlight'>1.10.10.60 (Arc Repressor Mutant, subunit A)</span> in <span class='highlight'>DNA-directed RNA polymerase subunit Rpo10</span>. Showing 1 copy in chain <span class='highlight'>J [auth N]</span>. The deposited structure of PDB entry 4qiw contains 2 copies of CATH domain 1.10.10.60 (Arc Repressor Mutant, subunit A) in DNA-directed RNA polymerase subunit Rpo10. Showing 1 copy in chain J [auth N].](https://www.ebi.ac.uk/pdbe/static/entry/4qiw_10_N_CATH_1.10.10.60_image-200x200.png)
3.90.940.10
Class:
Alpha Beta
Architecture:
Alpha-Beta Complex
Topology:
Eukaryotic RPB6 RNA polymerase subunit
Homology:
Eukaryotic RPB6 RNA polymerase subunit
Occurring in:
![The deposited structure of PDB entry <span class='highlight'>4qiw</span> contains 2 copies of CATH domain <span class='highlight'>3.90.940.10 (Eukaryotic RPB6 RNA polymerase subunit)</span> in <span class='highlight'>DNA-directed RNA polymerase subunit Rpo6</span>. Showing 1 copy in chain <span class='highlight'>H [auth K]</span>. The deposited structure of PDB entry 4qiw contains 2 copies of CATH domain 3.90.940.10 (Eukaryotic RPB6 RNA polymerase subunit) in DNA-directed RNA polymerase subunit Rpo6. Showing 1 copy in chain H [auth K].](https://www.ebi.ac.uk/pdbe/static/entry/4qiw_8_K_CATH_3.90.940.10_image-200x200.png)
3.90.940.20
Class:
Alpha Beta
Architecture:
Alpha-Beta Complex
Topology:
Eukaryotic RPB6 RNA polymerase subunit
Homology:
RPB5-like RNA polymerase subunit
Occurring in:
![The deposited structure of PDB entry <span class='highlight'>4qiw</span> contains 2 copies of CATH domain <span class='highlight'>3.90.940.20 (Eukaryotic RPB6 RNA polymerase subunit)</span> in <span class='highlight'>DNA-directed RNA polymerase subunit Rpo5</span>. Showing 1 copy in chain <span class='highlight'>G [auth H]</span>. The deposited structure of PDB entry 4qiw contains 2 copies of CATH domain 3.90.940.20 (Eukaryotic RPB6 RNA polymerase subunit) in DNA-directed RNA polymerase subunit Rpo5. Showing 1 copy in chain G [auth H].](https://www.ebi.ac.uk/pdbe/static/entry/4qiw_7_H_CATH_3.90.940.20_image-200x200.png)
1.10.150.80
Class:
Mainly Alpha
Architecture:
Orthogonal Bundle
Topology:
DNA polymerase; domain 1
Homology:
HRDC domain
Occurring in:

6.10.140.10
Class:
Special
Architecture:
Helix non-globular
Topology:
Helix Hairpins
Homology:
Helix Hairpins
Occurring in:

2.40.50.140
Class:
Mainly Beta
Architecture:
Beta Barrel
Topology:
OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homology:
Nucleic acid-binding proteins
Occurring in:

3.30.1490.120
Class:
Alpha Beta
Architecture:
2-Layer Sandwich
Topology:
Dna Ligase; domain 1
Homology:
RNA polymerase Rpb7-like, N-terminal domain
Occurring in:

3.30.70.3110
Class:
Alpha Beta
Architecture:
2-Layer Sandwich
Topology:
Alpha-Beta Plaits
Homology:
Alpha-Beta Plaits
Occurring in:

2.170.120.12
Class:
Mainly Beta
Architecture:
Beta Complex
Topology:
RNA Polymerase Alpha Subunit; Chain A, domain 2
Homology:
DNA-directed RNA polymerase, insert domain
Occurring in:

1.10.150.390
Class:
Mainly Alpha
Architecture:
Orthogonal Bundle
Topology:
DNA polymerase; domain 1
Homology:
DNA polymerase; domain 1
Occurring in:

3.90.1800.10
Class:
Alpha Beta
Architecture:
Alpha-Beta Complex
Topology:
DCoH-like
Homology:
RNA polymerase alpha subunit dimerisation domain
Occurring in:

3.90.1070.20
Class:
Alpha Beta
Architecture:
Alpha-Beta Complex
Topology:
Hypothetical Protein Ta0175; Chain: A, domain 2
Homology:
Hypothetical Protein Ta0175; Chain: A, domain 2
Occurring in:

3.90.1110.10
Class:
Alpha Beta
Architecture:
Alpha-Beta Complex
Topology:
Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; domain 3
Homology:
RNA polymerase Rpb2, domain 2
Occurring in:

1.10.132.30
Class:
Mainly Alpha
Architecture:
Orthogonal Bundle
Topology:
Topoisomerase I; Chain A, domain 4
Homology:
Topoisomerase I; Chain A, domain 4
Occurring in:
