8IUI

Crystal structure of silkworm fibroinase complexed with E-64

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Fibroinase	polymer	218	23950.2	2	UniProt (Q6T9Z7) Pfam (PF00112)	Bombyx mori (domestic silkworm)
2	C, D (A, B)	N-[N-[1-HYDROXYCARBOXYETHYL-CARBONYL]LEUCYLAMINO-BUTYL]-GUANIDINE	non-polymer		360.4	2	Chemie (E64)
3	E, F (A, B)	water	water		18.0	211	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	47900.4
Non-Polymers*	Number of molecules	2
	Total formula weight	720.9
All*	Total formula weight	48621.3

*Water molecules are not included.