4ZHU

Crystal structure of a bacterial repressor 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	YfiR	polymer	190	20704.9	2	UniProt (Q9I4L4) Pfam (PF13689) In PDB	Pseudomonas aeruginosa PAO1
2	A, B	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
3		water	water		18.0	109	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	41409.7
Non-Polymers*	Number of molecules	3
	Total formula weight	288.2
All*	Total formula weight	41697.9

*Water molecules are not included.