Project description:HEK293T cells transduced with shRNA from MISSION library TRCN0000420470 using lentiviral delivery system. HEK293T cells transduced with scrambled shRNA, gifted from Dr. Mauricio Reginato. Tara L Davis, S. RaElle Jackson, Beth Adams, Anh Trinh, Jenna Marinock, Peter Naranjo, NIcholas Fox, and Gueil Wong-Shing performed primary experimental contributions to cell lines, RNA/cDNA preparation, and validation, all Drexel University College of Medicine, Philadelphia, PA. Hetty Rodriguez and John Tobias performed Bioanalyzer and microarray expreriments, and initial data processing. Affiliation: Molecular Profiling Facility and Genomic Analysis Core Bioinformatics Group, University of Pennsylvania, Philadelphia, PA. Human PPIL1 is a cyclophilin, an enzyme that interconverts cis and trans isomers of proline. PPIL1 associates with the human spliceosome, the complex and dynamic machinery that removes intronic sequence from pre-messenger RNA (pre-mRNA). Nothing is known about the function of PPIL1 in regulating transcription or alternative splicing events. To understand the nuclear function of PPIL1, we knocked down PPIL1 in human cells. We characterized a set of alternative splicing and transcriptional events that are PPIL1-responsive. We used these splicing and transcriptional bioassays to show that PPIL1-responsive events are largely specific, even within the cyclophilin family.
Project description:HEK293T cells transduced with shRNA from MISSION library TRCN0000000185 using lentiviral delivery system. HEK293T cells transduced with scrambled shRNA, gifted from Dr. Mauricio Reginato. Tara L Davis, S. RaElle Jackson, Beth Adams, Anh Trinh, Jonathan Amora, Peter Naranjo, Gueil Wong-Shing, and Nii Martey performed primary experimental contributions to cell lines, RNA/cDNA preparation, and validation, all Drexel University College of Medicine, Philadelphia, PA. Hetty Rodriguez and John Tobias performed Bioanalyzer and microarray expreriments, and initial data processing. Affiliation: Molecular Profiling Facility and Genomic Analysis Core Bioinformatics Group, University of Pennsylvania, Philadelphia, PA. Human PPIL3 is a cyclophilin, an enzyme that interconverts cis and trans isomers of proline. PPIL3 associates with the human spliceosome, the complex and dynamic machinery that removes intronic sequence from pre-messenger RNA (pre-mRNA). Nothing is known about the function of PPIL3 in the nucleus. To understand the function of PPIL3, we knocked down PPIL3 in human cells. We characterized a set of alternative splicing and transcriptional events that are PPIL3-responsive. We used these splicing and transcriptional bioassays to show that PPIL3-responsive events are largely specific, even within the cyclophilin family.