4DCX

X-ray structure of NikA in complex with Fe(1R,2R)-N,N'-Bis(2-pyridylmethyl)-N,N'-dicarboxymethyl-1,2-cyclohexanediamine

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
2	C, D, GA (A, B)	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
3	E, F, G, H, HA... (A, B)	ACETATE ION	non-polymer		59.0	27	Chemie (ACT)
4	AA, BA, CA, DA, EA... (A, B)	GLYCEROL	non-polymer		92.1	18	Chemie (GOL)
5	FA, ZA (A, B)	{2,2'-[(1R,2R)-cyclohexane-1,2-diylbis{[(pyridin-2-yl-kappaN)methyl]imino-kappaN}]diacetato-kappaO(2-)}iron	non-polymer		466.3	2	Chemie (L2D)
6	AB, BB (A, B)	water	water		18.0	858	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	112721.5
Non-Polymers*	Number of molecules	50
	Total formula weight	4472.7
All*	Total formula weight	117194.2

*Water molecules are not included.