Coordinated tissue-specific regulation of adjacent alternative 3' splice sites in C. elegans.

ABSTRACT: Adjacent alternative 3' splice sites, those separated by ≤18 nucleotides, provide a unique problem in the study of alternative splicing regulation; there is overlap of the cis-elements that define the adjacent sites. Identification of the intron's 3' end depends upon sequence elements that define the branchpoint, polypyrimidine tract, and terminal AG dinucleotide. Starting with RNA-seq data from germline-enriched and somatic cell-enriched Caenorhabditis elegans samples, we identify hundreds of introns with adjacent alternative 3' splice sites. We identify 203 events that undergo tissue-specific alternative splicing. For these, the regulation is monodirectional, with somatic cells preferring to splice at the distal 3' splice site (furthest from the 5' end of the intron) and germline cells s

SUBMITTER: Ragle JM 

PROVIDER: S-EPMC4484395 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature