2FII

Crystal Structure Analysis of the B-DNA Dodecamer CGCGAAT-aU-CGCG, with Incorporated Arabino-Uridin (aU)

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)	5'-D(*CP*GP*CP*GP*AP*AP*TP*(UAR)P*CP*GP*CP*G)-3'	polymer	12	3665.4	2
2	C (A)	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
3	D, E (A, B)	water	water		18.0	131	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	7330.7
Non-Polymers*	Number of molecules	1
	Total formula weight	24.3
All*	Total formula weight	7355.0

*Water molecules are not included.