1O55

MOLECULAR STRUCTURE OF TWO CRYSTAL FORMS OF CYCLIC TRIADENYLIC ACID AT 1 ANGSTROM RESOLUTION

Replaces:  415D

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	DNA (5'-CD(*AP*AP*AP)-3')	polymer	3	894.7	2
2	C (B)	COBALT (II) ION	non-polymer		58.9	1	Chemie (CO)
3	D, E (A, B)	water	water		18.0	23	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	1789.3
Non-Polymers*	Number of molecules	1
	Total formula weight	58.9
All*	Total formula weight	1848.3

*Water molecules are not included.