5MK7

Crystal structure of the receptor-binding domain of botulinum neurotoxin A1 (crystal form 2)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Botulinum neurotoxin type A	polymer	433	50711.4	1	UniProt (P10845) Pfam (PF07953) Pfam (PF07951) UniProt (by SIFTS) (P0DPI1) In PDB	Clostridium botulinum	BoNT/A,Bontoxilysin-A,BOTOX
2		water	water		18.0	322	Chemie (HOH)

Sequence modifications

A: 871 - 1296 (UniProt: P10845)

PDB	External Database	Details
Met 864	-	initiating methionine
His 865	-	expression tag
His 866	-	expression tag
His 867	-	expression tag
His 868	-	expression tag
His 869	-	expression tag
His 870	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	50711.4
All*	Total formula weight	50711.4

*Water molecules are not included.