5I4S

Non-natural DNA pair Z (6-amino-5-nitro-2[1H] pyridone heterocycle)-Guanosine

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	DNA (5'-D(P*GP*CP*GP*AP*AP*TP*TP*(D8Z)P*GP*CP*G)-3')	polymer	12	3707.4	2		synthetic construct
2	A, B	CALCIUM ION	non-polymer		40.1	8	Chemie (CA)
3		water	water		18.0	16	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	7414.8
Non-Polymers*	Number of molecules	8
	Total formula weight	320.6
All*	Total formula weight	7735.4

*Water molecules are not included.