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Mutations in CEP57 cause mosaic variegated aneuploidy syndrome

Nature Genetics volume 43, pages 527–529 (2011)Cite this article

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Abstract

Using exome sequencing and a variant prioritization strategy that focuses on loss-of-function variants, we identified biallelic, loss-of-function CEP57 mutations as a cause of constitutional mosaic aneuploidies. CEP57 is a centrosomal protein and is involved in nucleating and stabilizing microtubules. Our findings indicate that these and/or additional functions of CEP57 are crucial for maintaining correct chromosomal number during cell division.

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Figure 1: CEP57 structure, mutations and resulting aneuploidy.

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NCBI Reference Sequence

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Acknowledgements

We are very grateful to all the families that participated in this study and to A. Zachariou, M. Warren-Perry, R. Linger, D. Dudakia and J. Bull for assistance in their recruitment. We thank D. Leongamornlert for assistance with exome sequencing, A. Renwick, S. Seal, G. Bowden, D. Hughes and C. Turnbull for assistance in Solexa optimization and validation experiments and B. Ebbs for DNA extraction and for running the ABI sequencer. We thank K. Tatton-Brown for assistance with clinical review of cases, A.I. Vasquez and J. Swansbury for the karyotyping and A. Strydom for secretarial assistance with the manuscript. K.S. is supported by the Michael and Betty Kadoorie Cancer Genetics Research Programme. We acknowledge NHS funding to the National Institute for Health Research Biomedical Research Centre. This work was supported by Cancer Research UK (grants C8620_A9024 and C8620_A8857) and the Institute of Cancer Research (UK).

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Author notes

  1. Katie Snape and Sandra Hanks: These authors contributed equally to this work.

Authors and Affiliations

  1. Section of Cancer Genetics, Institute of Cancer Research, Sutton, UK

    Katie Snape, Sandra Hanks, Elise Ruark, Anna Elliott, Anne Murray, Jenny Douglas & Nazneen Rahman

  2. División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, México.,

    Patricio Barros-Núñez

  3. Division of Pediatric Endocrinology, State University of New York at Stony Brook, Stony Brook, New York, USA

    Andrew H Lane

  4. Clinical Genetics Service, City Hospital, Nottingham, UK

    Nora Shannon

  5. Service de Cytogénétique, Centre Hospitalier Universitaire (CHU) de Dijon, Dijon, France

    Patrick Callier

  6. Department of Obstetrics and Gynecology, Mount Sinai Hospital and Division of Clinical & Metabolic Genetics, Department of Pediatrics, The Prenatal Diagnosis and Medical Genetics Program, Hospital for Sick Children, Toronto, Ontario, Canada

    David Chitayat

  7. Manchester Biomedical Research Center, Manchester Academic Health Sciences Center, St. Mary's Hospital, Manchester, UK

    Jill Clayton-Smith

  8. Medical Research Council (MRC) Human Genetics Unit, Institute of Genetic and Molecular Medicine, Western General Hospital, Edinburgh, UK

    David R FitzPatrick

  9. Department of Clinical Genetics, Lund University, University and Regional Laboratories, Skåne University Hospital, Lund, Sweden

    David Gisselsson

  10. Division of Medical Genetics, CHU Vaudois, Lausanne, Switzerland

    Sebastien Jacquemont

  11. Ninewells Hospital and Medical School, Tayside University Hospitals National Health Service (NHS) Trust, Dundee, UK.,

    Keiko Asakura-Hay

  12. Department of Anatomic Pathology, William Beaumont Hospital, Royal Oak & Oakland University William Beaumont School of Medicine, Rochester, Michigan, USA

    Mark A Micale

  13. Department of Clinical Genetics, Ferguson-Smith Centre, Royal Hospital for Sick Children, Glasgow, UK

    John Tolmie

  14. Peninsula Clinical Genetics Service and Peninsula Medical School, Royal Devon & Exeter Healthcare NHS Trust, Exeter, UK

    Peter D Turnpenny

  15. Northern Genetics Service, Newcastle upon Tyne Hospitals Foundation Trust, Newcastle upon Tyne, UK

    Michael Wright

Authors
  1. Katie Snape
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  2. Sandra Hanks
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  3. Elise Ruark
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  4. Patricio Barros-Núñez
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  5. Anna Elliott
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  6. Anne Murray
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  7. Andrew H Lane
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  8. Nora Shannon
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  9. Patrick Callier
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  10. David Chitayat
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  14. Sebastien Jacquemont
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  15. Keiko Asakura-Hay
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  16. Mark A Micale
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  18. Peter D Turnpenny
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  19. Michael Wright
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  20. Jenny Douglas
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  21. Nazneen Rahman
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Contributions

S.H., J.D. and A.M. performed exome sequencing. K.S., E.R., A.E. and N.R. performed data management and analysis. S.H. and J.D. performed CEP57 mutation and dosage analysis. P.B.-N., A.H.L., N.S., P.C., D.C., J.C.-S., D.R.F., D.G., S.J., K.A.-H., M.A.M., J.T., P.D.T. and M.W. provided clinical material. N.R. wrote the manuscript with substantial input from K.S., S.H., E.R. and J.D. N.R. designed and oversaw all aspects of the study.

Corresponding author

Correspondence to Nazneen Rahman.

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The authors declare no competing financial interests.

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Supplementary Methods, Supplementary Tables 1–5 and Supplementary Figures 1–4. (PDF 3220 kb)

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Snape, K., Hanks, S., Ruark, E. et al. Mutations in CEP57 cause mosaic variegated aneuploidy syndrome. Nat Genet 43, 527–529 (2011). https://doi.org/10.1038/ng.822

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