Mutations in the gene encoding IFT dynein complex component WDR34 cause Jeune asphyxiating thoracic dystrophy

Copyright © 2013 The Authors. Published by Elsevier Inc. All rights reserved..

Bidirectional (anterograde and retrograde) motor-based intraflagellar transport (IFT) governs cargo transport and delivery processes that are essential for primary cilia growth and maintenance and for hedgehog signaling functions. The IFT dynein-2 motor complex that regulates ciliary retrograde protein transport contains a heavy chain dynein ATPase/motor subunit, DYNC2H1, along with other less well functionally defined subunits. Deficiency of IFT proteins, including DYNC2H1, underlies a spectrum of skeletal ciliopathies. Here, by using exome sequencing and a targeted next-generation sequencing panel, we identified a total of 11 mutations in WDR34 in 9 families with the clinical diagnosis of Jeune syndrome (asphyxiating thoracic dystrophy). WDR34 encodes a WD40 repeat-containing protein orthologous to Chlamydomonas FAP133, a dynein intermediate chain associated with the retrograde intraflagellar transport motor. Three-dimensional protein modeling suggests that the identified mutations all affect residues critical for WDR34 protein-protein interactions. We find that WDR34 concentrates around the centrioles and basal bodies in mammalian cells, also showing axonemal staining. WDR34 coimmunoprecipitates with the dynein-1 light chain DYNLL1 in vitro, and mining of proteomics data suggests that WDR34 could represent a previously unrecognized link between the cytoplasmic dynein-1 and IFT dynein-2 motors. Together, these data show that WDR34 is critical for ciliary functions essential to normal development and survival, most probably as a previously unrecognized component of the mammalian dynein-IFT machinery.

Medienart:

E-Artikel

Erscheinungsjahr:

2013

Erschienen:

2013

Enthalten in:

Zur Gesamtaufnahme - volume:93

Enthalten in:

American journal of human genetics - 93(2013), 5 vom: 07. Nov., Seite 932-44

Sprache:

Englisch

Beteiligte Personen:

Schmidts, Miriam [VerfasserIn]
Vodopiutz, Julia [VerfasserIn]
Christou-Savina, Sonia [VerfasserIn]
Cortés, Claudio R [VerfasserIn]
McInerney-Leo, Aideen M [VerfasserIn]
Emes, Richard D [VerfasserIn]
Arts, Heleen H [VerfasserIn]
Tüysüz, Beyhan [VerfasserIn]
D'Silva, Jason [VerfasserIn]
Leo, Paul J [VerfasserIn]
Giles, Tom C [VerfasserIn]
Oud, Machteld M [VerfasserIn]
Harris, Jessica A [VerfasserIn]
Koopmans, Marije [VerfasserIn]
Marshall, Mhairi [VerfasserIn]
Elçioglu, Nursel [VerfasserIn]
Kuechler, Alma [VerfasserIn]
Bockenhauer, Detlef [VerfasserIn]
Moore, Anthony T [VerfasserIn]
Wilson, Louise C [VerfasserIn]
Janecke, Andreas R [VerfasserIn]
Hurles, Matthew E [VerfasserIn]
Emmet, Warren [VerfasserIn]
Gardiner, Brooke [VerfasserIn]
Streubel, Berthold [VerfasserIn]
Dopita, Belinda [VerfasserIn]
Zankl, Andreas [VerfasserIn]
Kayserili, Hülya [VerfasserIn]
Scambler, Peter J [VerfasserIn]
Brown, Matthew A [VerfasserIn]
Beales, Philip L [VerfasserIn]
Wicking, Carol [VerfasserIn]
UK10K [VerfasserIn]
Duncan, Emma L [VerfasserIn]
Mitchison, Hannah M [VerfasserIn]

Links:

Volltext

Themen:

Carrier Proteins
Cytoplasmic Dyneins
DYNC1H1 protein, human
DYNC2H1 protein, human
DYNLL1 protein, human
EC 3.6.1.-
EC 3.6.4.2
Intracellular Signaling Peptides and Proteins
Journal Article
Research Support, Non-U.S. Gov't
WDR34 protein, human

Anmerkungen:

Date Completed 30.12.2013

Date Revised 07.12.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ajhg.2013.10.003

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM232219052