CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
 
	 | 
    2 | Mainly Beta | 
 
	 | 
    2.40 | Beta Barrel | 
 
	 | 
    2.40.70 | Cathepsin D, subunit A; domain 1 | 
 
	 | 
    2.40.70.10 | Acid Proteases | 
Domain Context
CATH Clusters
| Superfamily | Acid Proteases | 
| Functional Family | Gene model 131, (NCBI) | 
Enzyme Information
| 3.4.23.4 | 
							 Chymosin. 
							based on mapping to UniProt Q9GK11 		
							Broad specificity similar to that of pepsin A. Clots milk by cleavage of a single 104-Ser-Phe-|-Met-Ala-107 bond in kappa-chain of casein. 
							-!- Neonatal gastric enzyme with high milk clotting and weak general proteolytic activity, formed from prochymosin. -!- Found among mammals with postnatal uptake of immunoglobins. -!- Belongs to peptidase family A1. -!- Formerly EC 3.4.4.3. 
						 | 
					
UniProtKB Entries (1)
| Q9GK11 | 
						 CHYM_CAMDR 
						Camelus dromedarius 
						Chymosin 
					 | 
				
PDB Structure
| PDB | 4AA9 | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | 
					 Camel and Bovine Chymosin: The Relationship between Their Structures and Cheese-Making Properties. 
					    
					    Acta Crystallogr.,Sect.D 
					    
					 | 
			
