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A correlation with exon expression approach to identify cis-regulatory elements for tissue-specific alternative splicing

Journal Article · · Nucleic Acids Research
DOI:https://doi.org/10.1093/nar/gkm485· OSTI ID:1625425
 [1];  [2];  [2];  [3];  [3];  [3];  [4];  [5];  [5];  [2];  [3]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Life Sciences Division; DOE/OSTI
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Genomics Division
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Life Sciences Division
  4. Affymetrix, Inc., Santa Clara, CA (United States)
  5. Affymetrix, Inc., Santa Clara, CA (United States)
Correlation of motif occurrences with gene expression intensity is an effective strategy for elucidating transcriptional cis-regulatory logic. Here we demonstrate that this approach can also identify cis-regulatory elements for alternative pre-mRNA splicing. Using data from a human exon microarray, we identified 56 cassette exons that exhibited higher transcript-normalized expression in muscle than in other normal adult tissues. Intron sequences flanking these exons were then analyzed to identify candidate regulatory motifs for muscle-specific alternative splicing. Correlation of motif parameters with gene-normalized exon expression levels was examined using linear regression and linear splines on RNA words and degenerate weight matrices, respectively. Our unbiased analysis uncovered multiple candidate regulatory motifs for muscle-specific splicing, many of which are phylogenetically conserved among vertebrate genomes. The most prominent downstream motifs were binding sites for Fox1- and CELF-related splicing factors, and a branchpoint-like element ACUAAC; pyrimidine-rich elements resembling PTB-binding sites were most significant in upstream introns. Intriguingly, our systematic study indicates a paucity of novel muscle-specific elements that are dominant in short proximal intronic regions. We propose that Fox and CELF proteins play major roles in enforcing the muscle-specific alternative splicing program, facilitating expression of unique isoforms of cytoskeletal proteins critical to muscle cell function.
Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of California, Berkeley, CA (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); National Institutes of Health (NIH); USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231; AC03-76SF00098
OSTI ID:
1625425
Journal Information:
Nucleic Acids Research, Journal Name: Nucleic Acids Research Journal Issue: 14 Vol. 35; ISSN 0305-1048
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (31)

Fox-1 family of RNA-binding proteins journal August 2009
Neuronal Elav-like (Hu) Proteins Regulate RNA Splicing and Abundance to Control Glutamate Levels and Neuronal Excitability journal September 2012
Rbfox-regulated alternative splicing is critical for zebrafish cardiac and skeletal muscle functions journal November 2011
Splicing by cell type journal July 2010
Expression of 24,426 human alternative splicing events and predicted cis regulation in 48 tissues and cell lines journal November 2008
FIRMA: a method for detection of alternative splicing from exon array data journal June 2008
Model-based detection of alternative splicing signals journal June 2010
Conserved elements associated with ribosomal genes and their trans-splice acceptor sites in Caenorhabditis elegans journal January 2010
Prediction of alternative isoforms from exon expression levels in RNA-Seq experiments journal February 2010
Global regulation of alternative splicing during myogenic differentiation journal July 2010
ARH-seq: identification of differential splicing in RNA-seq data journal June 2014
Identifying differential exon splicing using linear models and correlation coefficients journal January 2009
Genome-wide prediction of cis-acting RNA elements regulating tissue-specific pre-mRNA alternative splicing journal July 2009
Identification of conserved splicing motifs in mutually exclusive exons of 15 insect species journal January 2012
Prediction of alternatively skipped exons and splicing enhancers from exon junction arrays journal January 2008
Studying alternative splicing regulatory networks through partial correlation analysis journal January 2009
A computational approach for genome-wide mapping of splicing factor binding sites journal January 2009
Intronic motif pairs cooperate across exons to promote pre-mRNA splicing journal January 2010
Diversification of the muscle proteome through alternative splicing journal March 2018
A Primer on Regression Methods for Decoding cis-Regulatory Logic journal January 2009
A Global View of Cancer-Specific Transcript Variants by Subtractive Transcriptome-Wide Analysis journal March 2009
Comparative Analysis of mRNA Isoform Expression in Cardiac Hypertrophy and Development Reveals Multiple Post-Transcriptional Regulatory Modules journal July 2011
A Biophysical Model for Identifying Splicing Regulatory Elements and Their Interactions journal January 2013
Neural Differentiation Modulates the Vertebrate Brain Specific Splicing Program journal May 2015
Identification of Targets of CUG-BP, Elav-Like Family Member 1 (CELF1) Regulation in Embryonic Heart Muscle journal February 2016
Deciphering the splicing code journal May 2010
RNA processing and its regulation: global insights into biological networks journal January 2010
Cancer-associated regulation of alternative splicing journal May 2009
A postnatal switch of CELF and MBNL proteins reprograms alternative splicing in the developing heart journal December 2008
Genome-wide Analysis of Alternative Pre-mRNA Splicing journal January 2008
Computational Identification of Tissue-Specific Splicing Regulatory Elements in Human Genes from RNA-Seq Data journal November 2016

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