1L3Z

Crystal Structure Analysis of an RNA Heptamer

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	5'-R(*GP*UP*AP*UP*AP*CP*A)-3'	polymer	7	2205.4	2
2	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
3		water	water		18.0	39	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	4410.8
Non-Polymers*	Number of molecules	1
	Total formula weight	23.0
All*	Total formula weight	4433.7

*Water molecules are not included.