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TCTEX1D2 mutations underlie Jeune asphyxiating thoracic dystrophy with impaired retrograde intraflagellar transport.

Nature communications | 2015

The analysis of individuals with ciliary chondrodysplasias can shed light on sensitive mechanisms controlling ciliogenesis and cell signalling that are essential to embryonic development and survival. Here we identify TCTEX1D2 mutations causing Jeune asphyxiating thoracic dystrophy with partially penetrant inheritance. Loss of TCTEX1D2 impairs retrograde intraflagellar transport (IFT) in humans and the protist Chlamydomonas, accompanied by destabilization of the retrograde IFT dynein motor. We thus define TCTEX1D2 as an integral component of the evolutionarily conserved retrograde IFT machinery. In complex with several IFT dynein light chains, it is required for correct vertebrate skeletal formation but may be functionally redundant under certain conditions.

Pubmed ID: 26044572 RIS Download

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Associated grants

  • Agency: NIDCR NIH HHS, United States
    Id: R01 DE019567
  • Agency: NIGMS NIH HHS, United States
    Id: P20 GM103449
  • Agency: British Heart Foundation, United Kingdom
    Id: PG/07/045/22690
  • Agency: Medical Research Council, United Kingdom
    Id: G0800509
  • Agency: British Heart Foundation, United Kingdom
    Id: RG/10/13/28570
  • Agency: Wellcome Trust, United Kingdom
    Id: 098498
  • Agency: Wellcome Trust, United Kingdom
    Id: 095515
  • Agency: Wellcome Trust, United Kingdom
    Id: 100574
  • Agency: NIAMS NIH HHS, United States
    Id: R01 AR066124
  • Agency: NIAMS NIH HHS, United States
    Id: R01 AR062651
  • Agency: NIGMS NIH HHS, United States
    Id: R01 GM051293
  • Agency: Medical Research Council, United Kingdom
    Id: MR/L010305/1
  • Agency: NIGMS NIH HHS, United States
    Id: R37 GM030626
  • Agency: British Heart Foundation, United Kingdom
    Id: RG/10/17/28553
  • Agency: NHGRI NIH HHS, United States
    Id: T32 HG002536
  • Agency: Wellcome Trust, United Kingdom
    Id: 100140
  • Agency: Wellcome Trust, United Kingdom
    Id: 091551

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