1QCU

CRYSTAL STRUCTURE OF AN 18 BASE PAIR COPY CONTROL RELATED RNA DUPLEX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D (A, D)	5'-R(P*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*G)-3'	polymer	11	3752.3	2
2	B, C (B, C)	5'-R(P*CP*CP*CP*CP*CP*CP*CP*CP*CP*CP*C)-3'	polymer	11	3312.0	2
3	E, F, G, H (A, B)	AMMONIUM ION	non-polymer		18.0	4	Chemie (NH4)
4	I, J, K, L (A, B, C, D)	water	water		18.0	195	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	14128.7
Non-Polymers*	Number of molecules	4
	Total formula weight	72.2
All*	Total formula weight	14200.8

*Water molecules are not included.