3AI8

Cathepsin B in complex with the nitroxoline

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B, A	Cathepsin B	polymer	256	28085.3	2	UniProt (P07858) Pfam (PF00112) In PDB	Homo sapiens (human)	Cathepsin B1, APP secretase, APPS, Cathepsin B light chain, Cathepsin B heavy chain
2	B, A	5-nitroquinolin-8-ol	non-polymer		190.2	2	Chemie (HNQ)
3		water	water		18.0	284	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56170.6
Non-Polymers*	Number of molecules	2
	Total formula weight	380.3
All*	Total formula weight	56550.9

*Water molecules are not included.