1E7K

Crystal structure of the spliceosomal 15.5kD protein bound to a U4 snRNA fragment

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	15.5 KD RNA BINDING PROTEIN	polymer	128	14191.5	2	UniProt (P55769) Pfam (PF01248)	HOMO SAPIENS (HUMAN)	NHP2/RS6 FAMILY PROTEIN YEL026W HOMOLOG, HIGH MOBILITY GROUP-LIKE NUCLEAR PROTEIN 2 HOMOLOG, OTK27
2	C, D (C, D)	RNA (5'-R(*GP*CP*CP*AP*AP*UP*GP*AP*GP*GP*UP*UP*UP* AP*UP*CP*CP*GP*AP*GP*G*C(-3')	polymer	22	7074.3	2		HOMO SAPIENS	U4 SNRNA

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	42531.5
All*	Total formula weight	42531.5

*Water molecules are not included.