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Biallelic Mutations in MITF Cause Coloboma, Osteopetrosis, Microphthalmia, Macrocephaly, Albinism, and Deafness.


ABSTRACT: Human MITF is, by convention, called the "microphthalmia-associated transcription factor" because of previously published seminal mouse genetic studies; however, mutations in MITF have never been associated with microphthalmia in humans. Here, we describe a syndrome that we term COMMAD, characterized by coloboma, osteopetrosis, microphthalmia, macrocephaly, albinism, and deafness. COMMAD is associated with biallelic MITF mutant alleles and hence suggests a role for MITF in regulating processes such as optic-fissure closure and bone development or homeostasis, which go beyond what is usually seen in individuals carrying monoallelic MITF mutations.

SUBMITTER: George A 

PROVIDER: S-EPMC5142105 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Biallelic Mutations in MITF Cause Coloboma, Osteopetrosis, Microphthalmia, Macrocephaly, Albinism, and Deafness.

George Aman A   Zand Dina J DJ   Hufnagel Robert B RB   Sharma Ruchi R   Sergeev Yuri V YV   Legare Janet M JM   Rice Gregory M GM   Scott Schwoerer Jessica A JA   Rius Mariana M   Tetri Laura L   Gamm David M DM   Bharti Kapil K   Brooks Brian P BP  

American journal of human genetics 20161123 6


Human MITF is, by convention, called the "microphthalmia-associated transcription factor" because of previously published seminal mouse genetic studies; however, mutations in MITF have never been associated with microphthalmia in humans. Here, we describe a syndrome that we term COMMAD, characterized by coloboma, osteopetrosis, microphthalmia, macrocephaly, albinism, and deafness. COMMAD is associated with biallelic MITF mutant alleles and hence suggests a role for MITF in regulating processes s  ...[more]

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