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  • Title: Clinical and genetic analysis of ZTTK syndrome caused by SON heterozygous mutation c.394C>T.
    Author: Yang Y, Xu L, Yu Z, Huang H, Yang L.
    Journal: Mol Genet Genomic Med; 2019 Nov; 7(11):e953. PubMed ID: 31557424.
    Abstract:
    BACKGROUND: The present study aims to summarize the clinical and genetic characteristics of ZTTK syndrome. METHODS: The clinical and genetic data of a Chinese girl with severe growth and development delay, intellectual disability, and facial features were analyzed. Original articles on ZTTK syndrome published up to November 20l8 were identified from PubMed, Human Gene Mutation Database, Online Mendelian Inheritance in Man, China National Knowledge Infrastructure, and WanFang databases using the keywords "ZTTK syndrome" and "SON". RESULTS: The patient was born small for gestational age, and had poor academic performance, delayed language development, and motor retardation. The patient's height was 113 cm (less than -3 SD), and had moles on the back skin and possessed facial features. A novel heterozygous mutation c.394C>T (p.Q132X) of SON was found in this patient, but the parents were normal. CONCLUSION: The patient's clinical phenotype was consistent with ZTTK syndrome. The novel heterozygous mutation c.394C>T (p.Q132X) of SON was its pathogenic mutation, which has not been reported at home and abroad.
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