関連する実験動画
Updated: Jun 30, 2026

12:31
In Vivo Modeling of the Morbid Human Genome using Danio rerio
Published on: August 24, 2013
緊密な交差点クラウジン-14をコードする遺伝子の突然変異は,自己相性後退性失聴を引き起こします DFNB29
E R Wilcox1, Q L Burton, S Naz
1Laboratory of Molecular Genetics, 5 Research Court, NIDCD/NIH, Rockville, MD 20850, USA. wilcoxe@nidcd.nih.gov
Cell
|February 13, 2001
まとめ
CLDN14遺伝子の変異は非症候群的後退性難聴 (DFNB29) を引き起こします. この研究では,CLDN14が内耳機能と聴覚神経皮質の構造に不可欠であることを確認しました.
科学分野:
- 遺伝学 遺伝学とは
- 耳鼻喉科 (Otorhinolaryngology) は,耳鼻喉科 (Otorhinolaryngology) を専門とする医療機関である.
- 分子生物学は分子生物学である.
背景:
- 頭管の狭い接合は,エンドリンパの区画化と聴覚神経上皮質の構造的サポートに不可欠です.
- クラウディン遺伝子族は,様々な組織における細胞のバリア機能に不可欠な緊密な接合のタンパク質成分をコードします.
研究 の 目的:
- 内耳機能におけるクラウジン系タンパク質の役割を調査する.
- 非症候群的後退性難聴の遺伝的基礎を特定する DFNB29.
主な方法:
- DFNB29.の血縁家族に関する遺伝分析
- ネズミでのインシット・ハイブリダイゼーションと免疫光研究.
主要な成果:
- CLDN14の変異は,パキスタンの2つの家族でDFNB29の原因として特定されました.
- マウスのクラウジン-14発現は,Corti.の臓器の感官皮質に局限していた.
結論:
- CLDN14は,正常な内耳の発達と機能に不可欠です.
- CLDN14の欠陥は非症候群的後退性難聴につながる.
- クラウジン-14は,聴覚神経皮質の整合性を維持する上で重要な役割を果たします.
関連する概念動画
Mutations
Overview
Mutations
Overview
Alternative RNA Splicing
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.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
Genome Copying Errors
DNA replication is a well-evolved process that copies millions of base pairs with high fidelity during each cell division. Occasionally a wrong base or a long stretch of wrong bases may get added to the daughter strands. If the errors are left unchecked, cells might accumulate several mutations that might endanger their survival. Therefore, the copying errors are checked and repaired at three levels.
Mutations
Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Point and Frameshift Mutations
Point mutations are genetic alterations involving the change of a single nucleotide base pair in DNA. Depending on how the alteration affects protein synthesis, they can lead to various consequences.Point mutations fall into the following types:Silent mutations occur when a nucleotide change does not alter the amino acid sequence due to the redundancy of the genetic code. For instance, changing ACC to ACA still encodes threonine, leaving the protein function unaffected. This occurs because...

