5EB1

the YfiB-YfiR complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	YfiR	polymer	159	17392.8	2	UniProt (Q9I4L4) Pfam (PF13689) In PDB	Pseudomonas aeruginosa PAO1
2	B, D	YfiB	polymer	135	14860.6	2	UniProt (Q9I4L6) Pfam (PF00691) In PDB	Pseudomonas aeruginosa PAO1
3	B, D	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
4		water	water		18.0	534	Chemie (HOH)

Sequence modifications

A, C: 35 - 190 (UniProt: Q9I4L4)

PDB	External Database	Details
Gly 32	-	expression tag
Asn 33	-	expression tag
Ser 34	-	expression tag

B, D: 34 - 168 (UniProt: Q9I4L6)

PDB	External Database	Details
Pro 43	Leu 43	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	64506.8
Non-Polymers*	Number of molecules	2
	Total formula weight	192.1
All*	Total formula weight	64698.9

*Water molecules are not included.