Mutations in DNAH1, which encodes an inner arm heavy chain dynein, lead to male infertility from multiple morphological abnormalities of the sperm flagella.

Mariem Ben Khelifa; Charles Coutton; Raoudha Zouari; Thomas Karaouzène; John Rendu; Marie Bidart; Sandra Yassine; Virginie Pierre; Julie Delaroche; Sylviane Hennebicq; Didier Grunwald; Denise Escalier; Karine Pernet-Gallay; Pierre-Simon Jouk; Nicolas Thierry-Mieg; Aminata Touré; Christophe Arnoult; Pierre F Ray

doi:10.1016/j.ajhg.2013.11.017

Journal articles

Mutations in DNAH1, which encodes an inner arm heavy chain dynein, lead to male infertility from multiple morphological abnormalities of the sperm flagella.

Mariem Ben Khelifa ^{1, 2, 3} Charles Coutton ^{4, 2, 3} Raoudha Zouari ⁵ Thomas Karaouzène ^{2, 3, 6} John Rendu ^{7, 2, 8} Marie Bidart ^{2, 7} Sandra Yassine ^{2, 3} Virginie Pierre ^{2, 3} Julie Delaroche ^{2, 7} Sylviane Hennebicq ^{2, 3, 9} Didier Grunwald ^{2, 7} Denise Escalier ¹⁰ Karine Pernet-Gallay ^{2, 7} Pierre-Simon Jouk ^{11, 12} Nicolas Thierry-Mieg ⁶ Aminata Touré ¹¹ Christophe Arnoult ^{2, 3} Pierre F Ray ^{2, 3, 8, *}

* Corresponding author

1 LR11IPT05 - Laboratoire de Génomique Biomédicale et Oncogénétique - Biomedical Genomics and Oncogenetics Laboratory

2 UJF - Université Joseph Fourier - Grenoble 1

3 AGIM - AGeing and IMagery

4 Laboratoire de Génétique Chromosomique [CHU de Grenoble]

5 CPSR - Clinique de Promotion des Sciences de la Reproduction - Les Jasmins

6 TIMC-IMAG-BCM - Biologie Computationnelle et Mathématique

TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525

7 GIN - [GIN] Grenoble Institut des Neurosciences

8 DBTP - Institut de Biologie et de Pathologie

9 CECOS - Laboratoire d’Aide à la Procréation, Département de Génétique et Procréation

10 Physiopathologie des maladies génétiques d'expression pédiatrique

11 IC UM3 (UMR 8104 / U1016) - Institut Cochin

12 TIMC-IMAG-DyCTiM - Dynamique Cellulaire et Tissulaire- Interdisciplinarité, Modèles & Microscopies

TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525

Abstract : Ten to fifteen percent of couples are confronted with infertility and a male factor is involved in approximately half the cases. A genetic etiology is likely in most cases yet only few genes have been formally correlated with male infertility. Homozygosity mapping was carried out on a cohort of 20 North African individuals, including 18 index cases, presenting with primary infertility resulting from impaired sperm motility caused by a mosaic of multiple morphological abnormalities of the flagella (MMAF) including absent, short, coiled, bent, and irregular flagella. Five unrelated subjects out of 18 (28%) carried a homozygous variant in DNAH1, which encodes an inner dynein heavy chain and is expressed in testis. RT-PCR, immunostaining, and electronic microscopy were carried out on samples from one of the subjects with a mutation located on a donor splice site. Neither the transcript nor the protein was observed in this individual, confirming the pathogenicity of this variant. A general axonemal disorganization including mislocalization of the microtubule doublets and loss of the inner dynein arms was observed. Although DNAH1 is also expressed in other ciliated cells, infertility was the only symptom of primary ciliary dyskinesia observed in affected subjects, suggesting that DNAH1 function in cilium is not as critical as in sperm flagellum.

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Journal articles

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Life Sciences [q-bio] / Genetics

Life Sciences [q-bio]

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Mutations in DNAH1, which encodes an inner arm heavy chain dynein, lead to male infertility from multiple morphological abnormalities of the sperm flagella.

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