1DQF

CRYSTAL STRUCTURE OF HELIX II OF THE X. LAEVIS SOMATIC 5S RRNA WITH A CYTOSINE BULGE IN TWO CONFORMATIONS

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	RNA (5'-R(*GP*CP*CP*AP*CP*CP*CP*UP*G)-3')	polymer	9	2806.7	1
2	B	RNA (5'-R(*CP*AP*GP*GP*GP*UP*CP*GP*GP*C)-3')	polymer	10	3232.0	1
3	B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	38	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	6038.7
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	6118.9

*Water molecules are not included.