3M syndrome: a case report and literature review

VernacularTitle:3 M综合征1例报告并文献复习
Author: Xiaoying LIU ^{1
,

2} ; 贵州省人民医院儿科贵州贵阳 550002 ; Xike WANG ; Hao ZHOU ; Rong CHEN ; Yuchuan WANG ; Yuxia CUI
Author Information

1. 贵州医科大学贵州贵阳 550004
2. 贵州省人民医院儿科贵州贵阳 550002
Keywords: 3M syndrome; complete exon sequencing; gene mutation
From: Journal of Clinical Pediatrics 2017;35(12):906-908
CountryChina
Language:Chinese
Abstract: Objective To investigate the clinical features and gene mutations of 3M syndrome. Method The clinical data of a child with 3M syndrome was retrospectively analyzed. The DNA was extracted from the peripheral blood of the child and parents, and the sequence analyses were performed by Agilent SureSelect exon capture and Illumina HiSeq sequencing platform. And the mutant gene was validated by Sanger sequencing. Results The six-month-old girl presented special face and growth retardation.The girl had a missense mutation c.4898C>T,p.T1633M in the CUL7 gene(NM_014780.4),and both her parents had heterozygous mutations.The girl was diagnosed with 3M syndrome.Conclusions The CUL7 mutation is the major causative gene of 3M syndrome in this girl. Early gene testing should be performed to confirm the diagnosis in suspected clinical phenotype.