1Q5V

Apo-NikR

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, D	Nickel responsive regulator	polymer	133	15118.8	4	UniProt (P0A6Z6) Pfam (PF01402) Pfam (PF08753) In PDB	Escherichia coli	NIKR
2		water	water		18.0	22	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	60475.2
All*	Total formula weight	60475.2

*Water molecules are not included.