4XXU

ModA - chromate bound

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Molybdate-binding periplasmic protein	polymer	257	27396.2	2	UniProt (P37329) Pfam (PF13531) In PDB	Escherichia coli (strain K12)
2	A, B	Chromate	non-polymer		116.0	2	Chemie (CQ4)
3		water	water		18.0	619	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	54792.3
Non-Polymers*	Number of molecules	2
	Total formula weight	232.0
All*	Total formula weight	55024.3

*Water molecules are not included.