8WEO

Bacteroides fragilis toxin in complex with neutralization nanobody

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B, A	Fragilysin	polymer	186	20699.0	2	UniProt (P54355) Pfam (PF13688) In PDB	Bacteroides fragilis	Enterotoxin
2	C, D	NB243	polymer	126	14013.3	2		Vicugna pacos
3	B, A	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
4		water	water		18.0	865	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	69424.6
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	69555.4

*Water molecules are not included.