1D23

THE STRUCTURE OF B-HELICAL C-G-A-T-C-G-A-T-C-G AND COMPARISON WITH C-C-A-A-C-G-T-T-G-G. THE EFFECT OF BASE PAIR REVERSALS

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'-D(*CP*GP*AP*TP*CP*GP*AP*TP*CP*G)-3')	polymer	10	3045.0	2
2	C, D (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	E, F (A, B)	water	water		18.0	154	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	6090.0
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	6138.6

*Water molecules are not included.