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Nature Research (part of Springer Nature), Nature Communications, (6), p. 7074

DOI: 10.1038/ncomms8074

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

Journal article published in 2015 by S. Paige Taylor, Miriam Schmidts ORCID, Uk10k, Yuqing Hou, Claudio R. Cortés, Dorus A. Mans ORCID, Celine Huber, Karsten Boldt, Mitali Patel, Jeroen van Reeuwijk ORCID, Jean-Marc Plaza, Sylvia E. C. van Beersum, Zhi Min Yap, Stef J. F. Letteboer, Sp Paige Taylor and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

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.