2PN4

Crystal Structure of Hepatitis C Virus IRES Subdomain IIa

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	5'-R(*CP*GP*GP*AP*GP*GP*AP*AP*CP*UP*AP*CP*UP*GP*UP*CP*UP*UP*CP*AP*CP*GP*CP*C)-3'	polymer	24	7644.6	2
2	B, D (B, D)	5'-R(*GP*CP*GP*(5BU)P*GP*UP*CP*GP*UP*GP*CP*AP*GP*CP*CP*(5BU)P*CP*CP*GP*G)-3'	polymer	20	6564.6	2
3	E, F, G, H, I... (A, C)	STRONTIUM ION	non-polymer		87.6	10	Chemie (SR)
4	O, P, Q, R (A, B, C, D)	water	water		18.0	67	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	28418.4
Non-Polymers*	Number of molecules	10
	Total formula weight	876.2
All*	Total formula weight	29294.6

*Water molecules are not included.