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

Lookup NU author(s): Dr Mattia Calissano, Professor Jeremy Parr, Dr John Perry, Dr So-Youn Shin

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2015 Macmillan Publishers Limited. All rights reserved. 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.

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Author(s): Schmidts M, Hou Y, Cortes CR, Mans DA, Huber C, Boldt K, Patel M, Van Reeuwijk J, Plaza J-M, Van Beersum SEC, Yap ZM, Letteboer SJF, Taylor SP, Herridge W, Johnson CA, Scambler PJ, Ueffing M, Kayserili H, Krakow D, King SM, Beales PL, Al-Gazali L, Wicking C, Cormier-Daire V, Roepman R, Mitchison HM, Witman GB, UK10K, Calissano M, Parr J, Perry J, Shin S-Y

Publication type: Article

Publication status: Published

Journal: Nature Communications

Year: 2015

Volume: 6

Online publication date: 05/06/2015

Acceptance date: 31/03/2015

Date deposited: 26/07/2017

ISSN (electronic): 2041-1723

Publisher: Nature Publishing Group

URL: https://doi.org/10.1038/ncomms8074

DOI: 10.1038/ncomms8074

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