3DEB

Crystal Structure of apo form (Zinc removed) of the Botulinum Neurotoxin Type C Light Chain

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 C1 light chain	polymer	450	51505.7	1	UniProt (P18640) Pfam (PF01742) In PDB	Clostridium botulinum	BoNT/C1, Bontoxilysin-C1
2	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
3	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
4	A	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
5	A	FORMIC ACID	non-polymer		46.0	7	Chemie (FMT)
6		water	water		18.0	464	Chemie (HOH)

Sequence modifications

A: 1 - 430 (UniProt: P18640)

PDB	External Database	Details
Met -20	-	expression tag
Gly -19	-	expression tag
Ser -18	-	expression tag
Ser -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
Ser -10	-	expression tag
Ser -9	-	expression tag
Gly -8	-	expression tag
Leu -7	-	expression tag
Val -6	-	expression tag
Pro -5	-	expression tag
Arg -4	-	expression tag
Gly -3	-	expression tag
Ser -2	-	expression tag
His -1	-	expression tag
Thr 85	Pro 85	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	51505.7
Non-Polymers*	Number of molecules	10
	Total formula weight	444.3
All*	Total formula weight	51950.0

*Water molecules are not included.