5M8C

Spliceosome component

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)	Pre-mRNA-processing factor 19	polymer	360	40688.7	2	UniProt (P32523)	Saccharomyces cerevisiae (Baker's yeast)	RING-type E3 ubiquitin transferase PRP19
2	C, D (A, B)	water	water		18.0	207	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	81377.4
All*	Total formula weight	81377.4

*Water molecules are not included.