3HVD

The Protective Antigen Component of Anthrax Toxin Forms Functional Octameric Complexes

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	548	61512.4	8	UniProt (Q08G54) Pfam (PF03495) Pfam (PF17475) Pfam (PF17476) Pfam (PF20835) In PDB	Bacillus anthracis (anthrax anthrax bacterium)
2	A, B, C, D, E...	CALCIUM ION	non-polymer		40.1	16	Chemie (CA)
3		water	water		18.0	8	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H: 168 - 324 (UniProt: Q08G54)

PDB	External Database	Details
Pro 323	Val 303	engineered mutation
Gly 324	His 304	engineered mutation

A, B, C, D, E, F, G, H: 325 - 735 (UniProt: Q08G54)

PDB	External Database	Details
Arg 669	Gln 669	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	492098.8
Non-Polymers*	Number of molecules	16
	Total formula weight	641.2
All*	Total formula weight	492740.1

*Water molecules are not included.