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Pinin (Pnn), a serine/arginine-rich (SR)-related protein, has been shown to play multiple roles within eukaryotic cells including cell-cell adhesion, cell migration, regulation of gene transcription, mRNA export and alternative splicing. In this study, an attempt to generate mice homozygously deficient in Pnn failed because of early embryonic lethality. To(More)
pNO40/PS1D, a novel nucleolar protein, has been characterized as a core protein of eukaryotic 60S ribosome and at least two splicing forms of pNO40 mRNAs with alternative starting sites have been identified. Through production of knockout (ko) mice with either exon 2 (△E2), exon 4 (△E4) or △E2+E4 targeted disruption we identified a cryptic splicing product(More)
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