4FE4

Crystal structure of apo E. coli XylR

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	Xylose operon regulatory protein	polymer	392	44930.1	3	UniProt (P0ACI3) Pfam (PF22177) Pfam (PF13377) Pfam (PF00165) In PDB	Escherichia coli

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	134790.3
All*	Total formula weight	134790.3

*Water molecules are not included.