7OOS

The crystal structure of a DNA:RNA hybrid duplex sequence CTTTTCTTTG

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	RNA (5'-R(*CP*AP*AP*AP*GP*AP*AP*AP*AP*G)-3')	polymer	10	3255.1	1		synthetic construct
2	B	DNA (5'-D(*CP*TP*(05K)P*TP*CP*TP*TP*TP*G)-3')	polymer	9	2953.0	1		synthetic construct
3	A	STRONTIUM ION	non-polymer		87.6	2	Chemie (SR)
4		water	water		18.0	4	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	6208.1
Non-Polymers*	Number of molecules	2
	Total formula weight	175.2
All*	Total formula weight	6383.4

*Water molecules are not included.