2XET

Conserved hydrophobic clusters on the surface of the Caf1A usher C-terminal domain are important for F1 antigen assembly

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	F1 CAPSULE-ANCHORING PROTEIN	polymer	89	9549.9	2	UniProt (P26949) Pfam (PF13953) In PDB	YERSINIA PESTIS	CAF1A USHER
2	A, B	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
3		water	water		18.0	222	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	19099.8
Non-Polymers*	Number of molecules	3
	Total formula weight	288.2
All*	Total formula weight	19388.0

*Water molecules are not included.