1DCW

STRUCTURE OF A FOUR-WAY JUNCTION IN AN INVERTED REPEAT SEQUENCE.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	DNA (5'-D(*CP*CP*GP*GP*TP*AP*CP*CP*GP*G)-3')	polymer	10	3046.0	4
2	E (D)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
3	F, G, H, I (A, B, C, D)	water	water		18.0	91	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	12184.0
Non-Polymers*	Number of molecules	1
	Total formula weight	23.0
All*	Total formula weight	12207.0

*Water molecules are not included.