CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
 
	 | 
    3 | Alpha Beta | 
 
	 | 
    3.30 | 2-Layer Sandwich | 
 
	 | 
    3.30.160 | Double Stranded RNA Binding Domain | 
 
	 | 
    3.30.160.20 | 
Domain Context
CATH Clusters
| Superfamily | 3.30.160.20 | 
| Functional Family | Ribonuclease 3 | 
Enzyme Information
| 3.1.26.3 | 
							 Ribonuclease III. 
							based on mapping to UniProt O67082 		
							Endonucleolytic cleavage to 5'-phosphomonoester. 
							-!- An endoribonuclease that cleaves double-stranded RNA molecules. -!- The cleavage can be either a single-stranded nick or double-stranded break in the RNA, depending in part upon the degree of base-pairing in the region of the cleavage site. -!- Specificity is conferred by negative determinants, i.e., the presence of certain Watson-Crick base-pairs at specific positions that strongly inhibit cleavage. -!- RNase III is involved in both rRNA processing and mRNA processing and decay. 
						 | 
					
UniProtKB Entries (1)
| O67082 | 
						 RNC_AQUAE 
						Aquifex aeolicus VF5 
						Ribonuclease 3 
					 | 
				
PDB Structure
| PDB | 4M30 | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | 
					 RNase III: Genetics and Function; Structure and Mechanism. 
					    
					    Annu. Rev. Genet. 
					    
					 | 
			
