Mutations in the Pericentrin ( PCNT ) Gene Cause Primordial Dwarfism

Author:

Rauch Anita12345,Thiel Christian T.12345,Schindler Detlev12345,Wick Ursula12345,Crow Yanick J.12345,Ekici Arif B.12345,van Essen Anthonie J.12345,Goecke Timm O.12345,Al-Gazali Lihadh12345,Chrzanowska Krystyna H.12345,Zweier Christiane12345,Brunner Han G.12345,Becker Kristin12345,Curry Cynthia J.12345,Dallapiccola Bruno12345,Devriendt Koenraad12345,Dörfler Arnd12345,Kinning Esther12345,Megarbane André12345,Meinecke Peter12345,Semple Robert K.12345,Spranger Stephanie12345,Toutain Annick12345,Trembath Richard C.12345,Voss Egbert12345,Wilson Louise12345,Hennekam Raoul12345,de Zegher Francis12345,Dörr Helmuth-Günther12345,Reis André12345

Affiliation:

1. Institute of Human Genetics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany.

2. Department of Human Genetics, University of Würzburg, Würzburg, Germany.

3. Leeds Institute of Molecular Medicine, St. James's University Hospital, Leeds, UK.

4. Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.

5. Institut für Humangenetik und Anthropologie, Heinrich-Heine-Universität, Düsseldorf, Germany.

Abstract

Fundamental processes influencing human growth can be revealed by studying extreme short stature. Using genetic linkage analysis, we find that biallelic loss-of-function mutations in the centrosomal pericentrin ( PCNT ) gene on chromosome 21q22.3 cause microcephalic osteodysplastic primordial dwarfism type II (MOPD II) in 25 patients. Adults with this rare inherited condition have an average height of 100 centimeters and a brain size comparable to that of a 3-month-old baby, but are of near-normal intelligence. Absence of PCNT results in disorganized mitotic spindles and missegregation of chromosomes. Mutations in related genes are known to cause primary microcephaly ( MCPH1, CDK5RAP2, ASPM , and CENPJ ).

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference29 articles.

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3. Studies of microcephalic primordial dwarfism II: The osteodysplastic type II of primordial dwarfism

4. F. Brancati, M. Castori, R. Mingarelli, B. Dallapiccola, Am. J. Med. Genet. A.139, 212 (2005).

5. J. G. Hall, Am. J. Med. Genet. A.140, 1356 (2006).

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