Article
The deep intronic c.903+469T>C mutation in the MTRR gene creates an SF2/ASF binding exonic splicing enhancer, which leads to pseudoexon activation and causes the cblE type of homocystinuria.
Human mutation - 1 Apr 2010
Homolova Katerina, Zavadakova Petra, Doktor Thomas Koed, Schroeder Lisbeth Dahl, Kozich Viktor, Andresen Brage S
Abstract excerpt
Deep intronic mutations are often ignored as possible causes of human diseases. A deep intronic mutation in the MTRR gene, c.903+469T>C, is the most frequent mutation causing the cblE type of homocystinuria. It is well known to be associated with pre-mRNA mis-splicing, resulting in pseudoexon inclusion; however, the pathological mechanism remains unknown. We used minigenes to demonstrate that this mutation is the...
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