Polypyrimidine tract-binding protein 2 binds to selective, intronic messenger RNA and microRNA targets in the mouse testis

Mingang Xu, Norman B. Hecht

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Here we use an in vivo cross-linking and immunoprecipitation procedure to detect RNA targets of the multifunctional RNAbinding protein polypyrimidine tract-binding protein (PTBP) 2 in mouse testis. Eleven known mRNAs, including Ptbp2 mRNA, 28 RNAs matching intron sequences, and 12 small RNAs and repeat sequences are identified. The specificity of interaction between PTBP2 and its target RNAs was confirmed using RNA interference with mouse N2A cells. Reduction of PTBP2 levels led to decreases in 7 of 10 of the mRNAs, to the repression of alternative splicing of introns, and to reductions in specific miRNAs.

Original languageEnglish
Pages (from-to)435-439
Number of pages5
JournalBiology of Reproduction
Volume84
Issue number3
DOIs
StatePublished - 1 Mar 2011
Externally publishedYes

Keywords

  • Developmental biology
  • Gametogenesis
  • Gene regulation
  • RNA-binding proteins
  • Spermatogenesis
  • Splicing
  • Testis
  • mRNAs
  • miRNAs

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