1TZO

Crystal Structure of the Anthrax Toxin Protective Antigen Heptameric Prepore

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E...	Protective antigen	polymer	562	63019.0	14	UniProt (P13423) Pfam (PF03495) Pfam (PF17475) Pfam (PF17476) Pfam (PF20835) In PDB	Bacillus anthracis str.	pXO1-110; PA-83; PA83
2	G, H, I, J, K...	CALCIUM ION	non-polymer		40.1	28	Chemie (CA)

Contents of the asymmetric unit

Polymers	Number of chains	14
	Total formula weight	882266.2
Non-Polymers*	Number of molecules	28
	Total formula weight	1122.2
All*	Total formula weight	883388.4

*Water molecules are not included.