3CGS

X-ray structure containing the pseudouridylated U2 snRNA and mammalian intron branch site consensus sequences

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*GP*CP*GP*(PSU)P*AP*GP*UP*AP*GP*C)-3')	polymer	12	3867.4	1
2	B	RNA (5'-R(*CP*GP*CP*UP*AP*CP*UP*GP*AP*CP*GP*CP*G)-3')	polymer	13	4132.5	1
3	B	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4		water	water		18.0	122	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	7999.9
Non-Polymers*	Number of molecules	1
	Total formula weight	24.3
All*	Total formula weight	8024.2

*Water molecules are not included.