3CGQ

X-ray structure of a pseudouridine-containing yeast spliceosomal U2 snRNA-intron branch site duplex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	RNA (5'-R(*GP*CP*GP*CP*GP*(PSU)P*AP*GP*UP*AP*GP*C)-3')	polymer	12	3867.4	1
2	B (B)	RNA (5'-R(*CP*GP*CP*UP*AP*CP*UP*AP*AP*CP*GP*CP*G)-3')	polymer	13	4116.5	1
3	C (A)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
4	D, E (A, B)	water	water		18.0	49	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	7983.9
Non-Polymers*	Number of molecules	1
	Total formula weight	96.1
All*	Total formula weight	8079.9

*Water molecules are not included.