A novel EFNB1 mutation in a patient with craniofrontonasal syndrome and right hallux duplication |
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Authors: | Mehmet Seven Alper Gezdirici Hakan Ulucan Omer Faruk Karatas Elif Yosunkaya Adnan Yuksel Mustafa Ozen |
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Affiliation: | 1. Istanbul University, Cerrahpasa Medical School, Department of Medical Genetics, Fatih, Istanbul, Turkey;2. Molecular Biology and Genetics Department, Erzurum Technical University, Erzurum, Turkey;3. Bezmialem Vakif University, Istanbul, Turkey |
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Abstract: | Craniofrontonasal syndrome (CFNS, MIM #304110) is a rare X-linked dominant developmental disorder that shows paradoxically greater severity in affected females than in affected males. Our female patient with frontonasal dysplasia, craniosynostosis and additional malformations was consistent with CFNS. EFNB1, which encodes a member of the ephrin family of transmembrane ligands for Eph receptor tyrosine kinases, is the only gene in which mutation is known to cause CFNS. Here, we describe 402 T > C, a novel de novo mutation on EFNB1. This mutation results in substitution of highly conserved isoleucine at 134th residue to threonine. |
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Keywords: | 3D CT scan, Three-dimensional computed tomography scan ACTH, Adrenocorticotropic hormone CFNS, Craniofrontonasal syndrome HGMD, Human Gene Mutation Database IPD, Interpupillary distance OCD, Outer canthal distance SIFT, Sorting Intolerant From Tolerant |
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