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Mutational analysis of a Chinese family with oculocutaneous albinism type 2

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单位: [1]Department of Laboratory Medicine,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China [2]Department of Obstetrics and Gynecology,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China
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关键词: OCA2 SLC45A2 mutation splice site

摘要:
Oculocutaneous albinism (OCA) is an autosomal recessive disorder characterized by hypopigmentation of the skin, hair, and eyes accompanied with ophthalmologic abnormalities. Molecular genetic test can confirm the diagnosis of the four subtypes of OCA (OCA1-4). Herein, we report a Chinese family with two patients affected by OCA. Mutations of TYR, OCA2, TYRP1, and SLC45A2 were examined by using PCR-sequencing. Large deletions or duplications of TYR and OCA2 were examined by Multiplex Ligation-dependent Probe Amplification (MLPA) assay. Compound heterozygous mutations of OCA2, (c.808-3C>G and c.2080-2A>G), were identified in both patients characterized with yellow hair and milky skin, heterochromia iridis, and nystagmus. Several computer-assisted approaches predicted that c.808-3C>G and c.2080-2A>G in OCA2 might potentially be pathogenic splicing mutations. No exon rearrangement (deletion/duplication) of TYR and OCA2 was observed in the patients by MLPA analysis. This study suggests that compound heterozygous mutations, (c.808-3C>G and c.2080-2A>G), in OCA2 may be responsible for partial clinical manifestations of OCA.

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基金编号: 81500925

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出版当年[2016]版:
大类 | 1 区 医学
小类 | 2 区 细胞生物学 2 区 肿瘤学
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出版当年[2015]版:
Q1 CELL BIOLOGY Q1 ONCOLOGY
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第一作者单位: [1]Department of Laboratory Medicine,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China
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