4ZHV

Crystal structure of a bacterial signalling protein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	YfiB	polymer	168	18434.0	2	UniProt (Q9I4L6) Pfam (PF00691) In PDB	Pseudomonas aeruginosa PAO1
2	B	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3		water	water		18.0	277	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	36868.0
Non-Polymers*	Number of molecules	1
	Total formula weight	96.1
All*	Total formula weight	36964.0

*Water molecules are not included.