3AM2

Clostridium perfringens enterotoxin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Heat-labile enterotoxin B chain	polymer	328	36566.5	1	UniProt (P01558) Pfam (PF03505)	Clostridium perfringens
2	B, C, D (A)	UNKNOWN ATOM OR ION	non-polymer			3	Chemie (UNX)
3	E (A)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
4	F (A)	water	water		18.0	56	Chemie (HOH)

Sequence modifications

A: 1 - 319 (UniProt: P01558)

PDB	External Database	Details
Leu 320	-	expression tag
Glu 321	-	expression tag
His 322	-	expression tag
His 323	-	expression tag
His 324	-	expression tag
His 325	-	expression tag
His 326	-	expression tag
His 327	-	expression tag
His 328	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	36566.5
Non-Polymers*	Number of molecules	4
	Total formula weight	92.1
All*	Total formula weight	36658.6

*Water molecules are not included.