3N7K

Crystal structure of botulinum neurotoxin serotype C1 binding domain

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)	Botulinum neurotoxin type C1	polymer	426	49535.2	2	UniProt (P18640) Pfam (PF07953) Pfam (PF07951)	Clostridium botulinum	BoNT/C1, Bontoxilysin-C1, Botulinum neurotoxin C1 heavy chain
2	C, D (A, B)	water	water		18.0	110	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	99070.4
All*	Total formula weight	99070.4

*Water molecules are not included.