184D

SELF-ASSOCIATION OF A DNA LOOP CREATES A QUADRUPLEX: CRYSTAL STRUCTURE OF D(GCATGCT) AT 1.8 ANGSTROMS RESOLUTION

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	DNA (5'-D(*GP*CP*AP*TP*GP*CP*T)-3')	polymer	7	2113.4	1
2	B, C (A)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	D (A)	water	water		18.0	48	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	2113.4
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	2162.0

*Water molecules are not included.