A protein complex that is required for efficient splicing, and prevents leakage of unspliced pre-mRNAs from the nucleus (named for pre-mRNA REtention and Splicing). In Saccharomyces, the complex consists of Ist3p, Bud13p, and Pml1p. (Gene Ontology, GO_0070274)
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1 proteins localized to the res complex cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.