6CIH

Crystal structure of a group II intron lariat in the post-catalytic state

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 (696-MER)	polymer	621	200852.0	1		Pylaiella littoralis
2	B (B)	RNA (5'-R(P*UP*GP*UP*UP*UP*AP*UP*UP*AP*AP*AP*AP*AP*C*-3')	polymer	14	4417.7	1		Pylaiella littoralis
3	AA, BA, C, CA, D... (A)	IRIDIUM HEXAMMINE ION	non-polymer		294.4	41	Chemie (IRI)
4	AB, AD, AE, BB, BD... (A, B)	MAGNESIUM ION	non-polymer		24.3	86	Chemie (MG)
5	AC, BC, CC, DC, VB... (A)	SODIUM ION	non-polymer		23.0	9	Chemie (NA)
6	AF, BF, CF, DF, EF... (A, B)	water	water		18.0	246	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	205269.6
Non-Polymers*	Number of molecules	136
	Total formula weight	14367.5
All*	Total formula weight	219637.2

*Water molecules are not included.