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- 검색키워드
- 주제어 : MLL2 mutation (검색결과 2 건)
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A novel MLL2 gene mutation in a Korean patient with Kabuki syndrome
Kim, Soo Jin,Cho, Sung Yoon,Maeng, Se Hyun,Sohn, Young Bae,Kim, Su-Jin,Ki, Chang-Seok,Jin, Dong-Kyu The Korean Pediatric Society 2013 Clinical and Experimental Pediatrics (CEP) Vol.56 No.8
Kabuki syndrome (KS) is a rare genetic disease with a distinctive dysmorphic face, intellectual disability, and multiple congenital abnormalities. KS is inherited in an autosomal dominant manner. As the primary cause of KS, MLL2 mutations have been identified in 56-76% of affected individuals who have been tested, suggesting that there may be additional genes associated with KS. Recently, a few KS individuals have been found to have de novo partial or complete deletions of an X chromosome gene, KDM6A, which encodes a histone demethylase that interacts with MLL2. Nevertheless, mutations in MLL2 are the major cause of KS. Although there are a few reports of KS patients in Korea, none of these had been confirmed by genetic analysis. Here, we report a case of a Korean patient with clinical features of KS. Using direct sequencing, we identified a frameshift heterozygous mutation for MLL2 : (c.5256_5257delGA;p.Lys1753Alafs$^*34$). Clinically, the patient presented with typical facial features, and diagnosis of KS was based on the diagnostic criteria. While KS is a rare disease, other malformations that overlap with those found in individuals with KS are common. Hence, the diagnosis of KS by mutational analysis can be a valuable method for patients with KS-like syndromes. Furthermore, in the near future, other genes could be identified in patients with KS without a detectable MLL2 mutation.
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A novel MLL2 gene mutation in a Korean patient with Kabuki syndrome
김수진,조성윤,맹세현,손영배,김수진,기창석,진동규 대한소아청소년과학회 2013 Clinical and Experimental Pediatrics (CEP) Vol.56 No.8
Kabuki syndrome (KS) is a rare genetic disease with a distinctive dysmorphic face, intellectual disability,and multiple congenital abnormalities. KS is inherited in an autosomal dominant manner. As the primary cause of KS, MLL2 mutations have been identified in 56–76% of affected individuals who have been tested,suggesting that there may be additional genes associated with KS. Recently, a few KS individuals have been found to have de novo partial or complete deletions of an X chromosome gene, KDM6A , which encodes a histone demethylase that interacts with MLL2 . Nevertheless, mutations in MLL2 are the major cause of KS. Although there are a few reports of KS patients in Korea, none of these had been confirmed by genetic analysis. Here, we report a case of a Korean patient with clinical features of KS. Using direct sequencing,we identified a frameshift heterozygous mutation for MLL2 : (c.5256_5257delGA;p.Lys1753Alafs*34). Clinically, the patient presented with typical facial features, and diagnosis of KS was based on the diagnostic criteria. While KS is a rare disease, other malformations that overlap with those found in individuals with KS are common. Hence, the diagnosis of KS by mutational analysis can be a valuable method for patients with KS-like syndromes. Furthermore, in the near future, other genes could be identified in patients with KS without a detectable MLL2 mutation.
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