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  • Title: Novel TBX22 mutations in Chinese nonsyndromic cleft lip/palate families.
    Author: Dai J, Xu C, Wang G, Liang Y, Wan T, Zhang Y, Xu X, Yu L, Che Z, Han Q, Wu D, Yang Y.
    Journal: J Genet; 2018 Jun; 97(2):411-417. PubMed ID: 29932061.
    Abstract:
    TBX22 is a gene which contribute to cleft lip/palate, and many mutation sites of TBX22 have been reported. However, the exact role of TBX22 mutation in Chinese nonsyndromic cleft lip/palate (NSCL/P) family was not clearly explored. In this study, we tried to investigate the profiles and effects of TBX22 mutation in Chinese NSCL/P family. Members of two Chinese NSCL/P families and 200 normal controls were enrolled in this study. Further, DNA sequence and bioinformatic analysis for TBX22 were performed. The results showed that a novel and essential splicing site mutation, IVS6-1G>C , was detected in a family with cleft palate. The bioinformatic analysis results showed that this mutation would lead to abnormal transcription or translation, followed by a loss of function of TBX22. In addition, a hemizygous missense mutation, c.874G>A (p.D292N), was first reported in another Chinese family, which may exhibit aggravated effects on the phenotypes of CL/P. Taking these findings together, this study provides a profile of TBX22 mutation in Chinese NSCL/P families, and further confirmed the important role of TBX22 in familial cases with X-linked cleft palate.
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