Multicomponent complex of RNA and proteins that is composed of four active spliceosomes, termed native spliceosomes, connected to each other by the pre-mRNA. The supraspliceosome is the nuclear machine where the pre-mRNA processing takes place, like the 5'-end capping, 3'-end cleavage, splicing and editing. [GOC:ans, GOC:jl, PMID:19282290]
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Collection
M5: Ontology GO: Gene Ontology GO:CC: GO Cellular Component
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