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


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… (More)
DOI: 10.1002/humu.21206