Pre-mRNA-splicing factor 38

UniProtKB accession:  Q00723

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UniProtKB description:  Required for pre-mRNA splicing and maintenance of stable U6 small nuclear RNA levels. Implicated in the formation of stable and biologically active snRNP structures. As part of the U4/U6.U5 tri-snRNP particle, dispensible for spliceosome assembly, but required for conformational changes, which result in U4 snRNA release and the subsequent catalytic activation of the spliceosome.