9K7R

Crystal structure of DNA/RNA duplex obtained using the counter diffusion method on Earth (K form)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	RNA (5'-R(*GP*AP*AP*GP*AP*AP*GP*AP*G)-3')	polymer	9	2981.9	1		synthetic construct
2	B (B)	DNA (5'-D(*(5CM)P*TP*CP*TP*TP*CP*TP*TP*(5CM))-3')	polymer	9	2660.8	1		synthetic construct
3	C (A)	SPERMINE	non-polymer		202.3	1	Chemie (SPM)
4	D, E (A, B)	water	water		18.0	69	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	5642.7
Non-Polymers*	Number of molecules	1
	Total formula weight	202.3
All*	Total formula weight	5845.0

*Water molecules are not included.