A Microdeletion of Chromosome 9q33.3 Encompasses the Entire LMX1B Gene in a Chinese Family with Nail Patella Syndrome

作者：Jiang Shujuan; Zhang Jiubin; Huang Dan; Zhang Yuanyuan; Liu Xiaoliang; Wang Yinzhao; He Rong^*; Zhao Yanyan

来源：International Journal of Molecular Sciences, 2014, 15(11): 20158-20168.

DOI：10.3390/ijms151120158

• gene deletion
• LMX1B
• MLPA
• nail patella syndrome

Nail patella syndrome (NPS) is an autosomal dominant disorder characterized by nail malformations, patellar apoplasia, or patellar hypoplasia. Mutations within the LMX1B gene are found in 85% of families with NPS; thus, this gene has been characterized as the causative gene of NPS. In this study, we identified a heterozygous microdeletion of the entire LMX1B gene using multiplex ligation-dependent probe amplification (MLPA) in a Chinese family with NPS. The determination of the deletion breakpoints by Illumina genome-wide DNA analysis beadchip showed that the deletion was located in chromosome 9q33.3 and spanned about 0.66 Mb in size. This heterozygous deletion provides strong evidence for haploinsufficiency as the pathogenic mechanism of NPS.

• 出版日期2014-11
• 单位中国医科大学