1PX9

Solution structure of the native CnErg1 Ergtoxin, a highly specific inhibitor of HERG channel

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	ergtoxin	polymer	42	4746.4	1	UniProt (Q86QT3) Pfam (PF08086) In PDB	Centruroides noxius (Mexican scorpion)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	4746.4
All*	Total formula weight	4746.4

*Water molecules are not included.