PUBLICATION
A missense mutation in TMEM67 causes Meckel-Gruber syndrome type 3 (MKS3): a family from China
- Authors
- Zhang, M., Cheng, J., Liu, A., Wang, L., Xiong, L., Chen, M., Sun, Y., Li, J., Lu, Y., Yuan, H., Li, Y., Lu, Y.
- ID
- ZDB-PUB-150721-3
- Date
- 2015
- Source
- International journal of clinical and experimental pathology 8: 5379-86 (Journal)
- Registered Authors
- Keywords
- MKS3, TMEM67, meckelin, mutation
- MeSH Terms
-
- Abnormalities, Multiple/genetics
- China
- Ciliary Motility Disorders/genetics*
- DNA Mutational Analysis
- Encephalocele/genetics*
- Family
- Humans
- Membrane Proteins/genetics*
- Mutation, Missense*
- Polycystic Kidney Diseases/genetics*
- PubMed
- 26191240
Citation
Zhang, M., Cheng, J., Liu, A., Wang, L., Xiong, L., Chen, M., Sun, Y., Li, J., Lu, Y., Yuan, H., Li, Y., Lu, Y. (2015) A missense mutation in TMEM67 causes Meckel-Gruber syndrome type 3 (MKS3): a family from China. International journal of clinical and experimental pathology. 8:5379-86.
Abstract
Meckel-Gruber syndrome (MKS) is a lethal autosomal recessive condition characterized by renal cysts and variably associated features, including developmental anomalies of the central nervous system (typically encephalocele), hepatic ductal dysplasia and cysts, and polydactyly. Genetic heterogeneity has been demonstrated at eleven loci, MKS1-11. Here, we present the clinical and molecular characteristics of a Chinese MKS3 family with occipital encephalocele and kidney enlargement. DNA sequencing of affected fetuses revealed a homozygous c.1645C>T substitution in exon 16 of TMEM67, leading to a p.R549C substitution in meckelin. The R549 residue is highly conserved across human, rat, mouse, zebrafish, chicken, wolf and platypus genomes. Hha I restriction analysis demonstrated that the c.1645C>T mutation was absent in 200 unrelated control chromosomes of Chinese background, supporting the hypothesis that it represents causative mutation, not rare polymorphism. Our data provide additional molecular and clinical information for establishing a better genotype-phenotype understanding of MKS.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping