Whole-Genome Analysis Reveals that Mutations in Inositol Polyphosphate Phosphatase-like 1 Cause Opsismodysplasia
Author(s) -
Jennifer E. Below,
Dawn Earl,
Kathryn M. Shively,
Margaret J. McMillin,
Joshua D. Smith,
Emily H. Turner,
Mark J. Stephan,
L.I. Al-Gazali,
Jozef Hertecant,
David Chitayat,
Sheila Unger,
Daniel H. Cohn,
Deborah Krakow,
James M. Swanson,
Elaine M. Faustman,
Jay Shendure,
Deborah A. Nickerson,
Michael J. Bamshad
Publication year - 2012
Publication title -
the american journal of human genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.661
H-Index - 302
eISSN - 1537-6605
pISSN - 0002-9297
DOI - 10.1016/j.ajhg.2012.11.011
Subject(s) - wasting , polyphosphate , short stature , genetics , biology , phosphate , endocrinology , biochemistry
Opsismodysplasia is a rare, autosomal-recessive skeletal dysplasia characterized by short stature, characteristic facial features, and in some cases severe renal phosphate wasting. We used linkage analysis and whole-genome sequencing of a consanguineous trio to discover that mutations in inositol polyphosphate phosphatase-like 1 (INPPL1) cause opsismodysplasia with or without renal phosphate wasting. Evaluation of 12 families with opsismodysplasia revealed that INPPL1 mutations explain ~60% of cases overall, including both of the families in our cohort with more than one affected child and 50% of the simplex cases.
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