246D

STRUCTURE OF THE PURINE-PYRIMIDINE ALTERNATING RNA DOUBLE HELIX, R(GUAUAUA)D(C) , WITH A 3'-TERMINAL DEOXY RESIDUE

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/RNA (5'-R(*GP*UP*AP*UP*AP*UP*AP*)-D(*C)-3')	polymer	8	2495.5	2
2	B	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
3		water	water		18.0	85	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	4991.1
Non-Polymers*	Number of molecules	2
	Total formula weight	46.0
All*	Total formula weight	5037.1

*Water molecules are not included.