CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
 
	 | 
    2 | Mainly Beta | 
 
	 | 
    2.170 | Beta Complex | 
 
	 | 
    2.170.120 | RNA Polymerase Alpha Subunit; Chain A, domain 2 | 
 
	 | 
    2.170.120.12 | DNA-directed RNA polymerase, insert domain | 
Domain Context
CATH Clusters
| Superfamily | DNA-directed RNA polymerase, insert domain | 
| Functional Family | DNA-directed RNA polymerase subunit alpha | 
Enzyme Information
| 2.7.7.6 | 
							 DNA-directed RNA polymerase. 
							based on mapping to UniProt A0QSL8 		
							Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1). 
							-!- Catalyzes DNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time. -!- Can initiate a chain de novo. -!- In eukaryotes three forms of the enzyme have been distinguished on the basis of sensitivity of alpha-amanitin, and the type of RNA synthesized. -!- See also EC 2.7.7.19 and EC 2.7.7.48. 
						 | 
					
UniProtKB Entries (1)
| A0QS66 | 
						 RPOC_MYCS2 
						Mycolicibacterium smegmatis MC2 155 
						DNA-directed RNA polymerase subunit beta' 
					 | 
				
PDB Structure
| PDB | 6F6W | 
| External Links | |
| Method | ELECTRON MICROSCOPY | 
| Organism | |
| Primary Citation | 
					 The Core and Holoenzyme Forms of RNA Polymerase fromMycobacterium smegmatis. 
					    
					    J. Bacteriol. 
					    
					 | 
			
