Journal
EUROPEAN JOURNAL OF HUMAN GENETICS
Volume 25, Issue 8, Pages 1015-1019Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ejhg.2017.79
Keywords
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Funding
- Wellcome Trust [093113]
- National Institute for Health Research [ACF-2014-02-011] Funding Source: researchfish
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We identified two homozygous missense variants (c. 428C > T, p.(T143M) and c. 746C > T, p.(P249L)) in ACPT, the gene encoding acid phosphatase, testicular, which segregates with hypoplastic amelogenesis imperfecta in two unrelated families. ACPT is reported to play a role in odontoblast differentiation and mineralisation by supplying phosphate during dentine formation. Analysis by computerised tomography and scanning electron microscopy of a primary molar tooth from an individual homozygous for the c. 746C > T variant revealed an enamel layer that was hypoplastic, but mineralised with prismatic architecture. These findings implicate variants in ACPT as a cause of early failure of amelogenesis during the secretory phase.
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