1VTY

Crystal structure of a Z-DNA fragment containing thymine/2-aminoadenine base pairs

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(*CP*(NH2)AP*CP*GP*TP*G)-3')	polymer	6	1824.2	2		synthetic construct
2	A, B	AMINO GROUP	non-polymer		16.0	2	Chemie (NH2)
3	B	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4		water	water		18.0	83	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	3648.5
Non-Polymers*	Number of molecules	3
	Total formula weight	56.4
All*	Total formula weight	3704.8

*Water molecules are not included.