357D

3.5 A structure of fragment I from E. coli 5S RRNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	RNA-DNA (5'-R(*UP*GP*DCP)-D(*CP(S)*)-R(*UP*GP*GP*CP*GP*GP*C)-3')	polymer	11	3514.2	1		Escherichia coli
2	B	RNA (5'-R(*CP*CP*GP*AP*UP*GP*GP*UP*AP*GP*UP*GP*UP*GP*GP*GP*G*UP*C)-3')	polymer	19	6166.7	1		Escherichia coli
3	C	RNA (5'-R(*CP*CP*CP*CP*AP*UP*GP*CP*GP*AP*GP*AP*GP*UP*AP*GP*G P*GP*AP*AP*CP*UP* GP*CP*CP*AP*GP*GP*CP*AP*U)-3')	polymer	31	10012.0	1		Escherichia coli
4	A, B, C	MAGNESIUM ION	non-polymer		24.3	8	Chemie (MG)
5	B	MERCURY (II) ION	non-polymer		200.6	1	Chemie (HG)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	19692.9
Non-Polymers*	Number of molecules	9
	Total formula weight	395.0
All*	Total formula weight	20088.0

*Water molecules are not included.