Abstract
Propionic acidemia is an inborn error of organic acid metabolism caused by a deficiency of propionyl Coenzyme A (CoA) carboxylase. cDNAs sequenced from a β subunit deficient Japanese patient (no. 187) showed an in-frame 57-bp deletion in one allele. Genomic DNA analysis revealed a four-nucleotide deletion of bases 3 to 6 in the 3′ intron adjacent to the deleted exon, which disrupted the consensus 5′ splice signal and caused exon skipping. This deletion removed one-half of a tetranucleotide direct repeat at the splice junction and presumably resulted from slipped mispairing.
References
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Ohura, T., Nariwasa, K., Tada, K. et al. A novel splicing mutation in propionic acidemia associated with a tetranucleotide direct repeat in the PCCB gene. Hum Genet 95, 707–708 (1995). https://doi.org/10.1007/BF00209492
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DOI: https://doi.org/10.1007/BF00209492