Format

Send to

Choose Destination
See comment in PubMed Commons below
Am J Hum Genet. 2010 Nov 12;87(5):655-60. doi: 10.1016/j.ajhg.2010.09.013. Epub 2010 Oct 21.

Defective mitochondrial mRNA maturation is associated with spastic ataxia.

Author information

1
Centre for Medical Genetics, St. George's University London, UK. acrosby@sgul.ac.uk

Abstract

In human mitochondria, polyadenylation of mRNA, undertaken by the nuclear-encoded mitochondrial poly(A) RNA polymerase, is essential for maintaining mitochondrial gene expression. Our molecular investigation of an autosomal-recessive spastic ataxia with optic atrophy, present among the Old Order Amish, identified a mutation of MTPAP associated with the disease phenotype. When subjected to poly(A) tail-length assays, mitochondrial mRNAs from affected individuals were shown to have severely truncated poly(A) tails. Although defective mitochondrial DNA maintenance underlies a well-described group of clinical disorders, our findings reveal a defect of mitochondrial mRNA maturation associated with human disease and imply that this disease mechanism should be considered in other complex neurodegenerative disorders.

PMID:
20970105
PMCID:
PMC2978972
DOI:
10.1016/j.ajhg.2010.09.013
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science Icon for PubMed Central
    Loading ...
    Support Center