Journal
AMERICAN JOURNAL OF HUMAN GENETICS
Volume 97, Issue 4, Pages 535-545Publisher
CELL PRESS
DOI: 10.1016/j.ajhg.2015.08.011
Keywords
-
Categories
Funding
- Belgian Science Policy Office Interuniversity Attraction Poles (BELSPO-IAP) program [TAP P7/43-BeMGI]
- Marie Curie Initial Training Networks action [FP-2012-PERFUME-316723]
- Manchester Biomedical Research Centre
- Wellcome Trust [093113]
- RP Fighting Blindness
- Fight For Sight [GR586]
- Fight for Sight [1801/02] Funding Source: researchfish
- National Institute for Health Research [NF-SI-0509-10185] Funding Source: researchfish
Ask authors/readers for more resources
Heimler syndrome (HS) is a rare recessive disorder characterized by sensorineural hearing loss (SNHL), amelogenesis imperfecta, nail abnormalities, and occasional or late-onset retinal pigmentation. We ascertained eight families affected by HS and, by using a whole-exome sequencing approach, identified biallelic mutations in PEX1 or PEX6 in six of them. Loss-of-function mutations in both genes are known causes of a spectrum of autosomal-recessive peroxisome-biogenesis disorders (PBDs), including Zellweger syndrome. PBDs are characterized by leukodystrophy, hypotonia, SNHL, retinopathy, and skeletal, craniofacial, and liver abnormalities. We demonstrate that each HS-affected family has at least one hypomorphic allele that results in extremely mild peroxisomal dysfunction. Although individuals with HS share some subtle clinical features found in PBDs, the diagnosis was not suggested by routine blood and skin fibroblast analyses used to detect PBDs. In conclusion, our findings define HS as a mild PBD, expanding the pleiotropy of mutations in PEX1 and PEX6.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available