3TEY

Crystal Structure of Anthrax Protective Antigen (Membrane Insertion Loop Deleted) Mutant S337C N664C to 2.06-A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Protective antigen	polymer	715	80738.7	1	Pfam (PF07691) Pfam (PF03495) Pfam (PF17475) Pfam (PF17476) Pfam (PF20835) UniProt (by SIFTS) (P13423) In PDB	Bacillus anthracis (anthrax anthrax bacterium)	PA, Anthrax toxins translocating protein, PA-83, PA83, Protective antigen PA-20, PA20, Protective antigen PA-63, PA63
2	A	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3		water	water		18.0	208	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	80738.7
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	80818.9

*Water molecules are not included.