3MW0

X-ray structure of the doubly hydroxylated iron complex-NikA species, NikA1/O2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Nickel-binding periplasmic protein	polymer	502	56360.7	2	UniProt (P33590) Pfam (PF00496)	Escherichia coli	NikA
2	C, H (A, B)	FE (III) ION	non-polymer		55.8	2	Chemie (FE)
3	D, F (A, B)	2-[2-[carboxymethyl-[(2-hydroxyphenyl)methyl]amino]ethyl-[(2,3-dihydroxyphenyl)methyl]amino]ethanoic acid	non-polymer		404.4	2	Chemie (BHR)
4	E, G (A, B)	DITHIANE DIOL	non-polymer		152.2	2	Chemie (DTD)
5	I, J (A, B)	water	water		18.0	477	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	112721.5
Non-Polymers*	Number of molecules	6
	Total formula weight	1225.0
All*	Total formula weight	113946.5

*Water molecules are not included.