4U6M

Crystal structure of DNA/RNA duplex obtained in the presence of Spermine

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(*GP*AP*AP*GP*AP*AP*GP*AP*G)-3')	polymer	9	2981.9	1		synthetic construct
2	B	DNA (5'-D(*(5CM)P*TP*CP*TP*TP*CP*TP*TP*(5CM))-3')	polymer	9	2660.8	1		synthetic construct
3		water	water		18.0	97	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	5642.7
All*	Total formula weight	5642.7

*Water molecules are not included.