5J02

Structure of the lariat form of a chimeric derivative of the Oceanobacillus iheyensis group II intron in the presence of NH4+, MG2+ and an inactive 5' exon.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	GROUP II INTRON LARIAT	polymer	418	135623.4	1		Oceanobacillus iheyensis
2	B (B)	5' EXON ANALOG (5'-R(*CP*UP*GP*UP*UP*AP*(5MU))-3')	polymer	7	2157.3	1		Oceanobacillus iheyensis
3	AA, BA, C, CA, D... (A)	MAGNESIUM ION	non-polymer		24.3	50	Chemie (MG)
4	AB, BB, CB, DB, EB... (A)	AMMONIUM ION	non-polymer		18.0	10	Chemie (NH4)
5	KB (A)	water	water		18.0	171	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	137780.7
Non-Polymers*	Number of molecules	60
	Total formula weight	1395.6
All*	Total formula weight	139176.3

*Water molecules are not included.