3EOG

Co-crystallization showing exon recognition by a group II intron

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Group IIC intron	polymer	412	133652.2	1
2	B	5'-R(*UP*UP*AP*UP*UP*A)-3'	polymer	6	1838.1	1
3	A	MAGNESIUM ION	non-polymer		24.3	31	Chemie (MG)
4	A	POTASSIUM ION	non-polymer		39.1	11	Chemie (K)
5		water	water		18.0	15	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	135490.3
Non-Polymers*	Number of molecules	42
	Total formula weight	1183.5
All*	Total formula weight	136673.8

*Water molecules are not included.