8F20

Structure of an A-tract B-DNA Dodecamer: 5'-CGCAAAAAAGCG-3

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*GP*CP*AP*AP*AP*AP*AP*AP*GP*CP*G)-3')	polymer	12	3689.4	1		Homo sapiens
2	B (C)	DNA (5'-D(*CP*GP*CP*TP*TP*TP*TP*TP*TP*GP*CP*G)-3')	polymer	12	3635.4	1		Homo sapiens
3	C, D (B, C)	water	water		18.0	5	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	7324.8
All*	Total formula weight	7324.8

*Water molecules are not included.