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Related Concept Videos

Alternative RNA Splicing02:18

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Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
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Related Experiment Video

Updated: Sep 1, 2025

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Prkra Mutation Alters Long Noncoding RNA Expression During Embryonic External Ear Development.

Wei Liu1, Shengyang Jin, Lin Lin

  • 1Plastic Surgery Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China.

The Journal of Craniofacial Surgery
|August 15, 2022
PubMed
Summary
This summary is machine-generated.

Point mutations in the Prkra gene cause abnormal mouse ear development. This study identified key long noncoding RNAs (lncRNAs) involved in regulating external ear development and signaling pathways in mutant mice.

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Area of Science:

  • Developmental biology
  • Genetics
  • Molecular biology

Background:

  • Point mutations in the Prkra gene lead to abnormal mouse external ear development.
  • The precise regulatory mechanisms driving this phenotype remain largely unknown.

Purpose of the Study:

  • To investigate the role of long noncoding RNAs (lncRNAs) in external ear development in Prkra mutant mice.
  • To identify differentially expressed lncRNAs and their associated signaling pathways.

Main Methods:

  • Transcriptome sequencing of outer ear tissues from Prkra mutant and control mouse embryos at E15.5 and E17.5.
  • Differential expression analysis of lncRNAs.
  • Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses.

Main Results:

  • Identification of numerous differentially expressed lncRNAs in Prkra mutant mice.
  • Several lncRNAs were found to be involved in critical developmental signaling pathways, including Hippo, MAPK, and ErbB.
  • Expression changes in key regulatory lncRNAs were observed due to Prkra gene mutations.

Conclusions:

  • lncRNAs play a significant role in regulating external ear embryonic development.
  • Prkra gene mutations impact the expression of regulatory lncRNAs involved in multiple developmental pathways.
  • Candidate lncRNAs have been identified for further investigation into external ear development mechanisms.