Acute intermittent porphyria caused by a G to C mutation in exon 12 of the porphobilinogen deaminase gene that results in exon skipping

Hum Genet. 1993 Dec;92(6):549-53. doi: 10.1007/BF00420937.

Abstract

Genomic DNA from a patient with acute intermittent porphyria were analyzed by the polymerase chain reaction (PCR)-direct sequencing method. The patient was heterozygote for a point mutation G to C at the last position of exon 12 of the porphobilinogen deaminase (PBG-D) gene. Analysis of the cDNA fragments amplified by PCR revealed that the patient has the abnormal PBG-D mRNA, which does not have exon 12 and exists in an approximately equal amount to the normal mRNA.

MeSH terms

  • Adult
  • Alleles
  • Base Sequence
  • Cytosine*
  • DNA / analysis
  • DNA Primers
  • Electrophoresis, Polyacrylamide Gel
  • Exons / genetics*
  • Female
  • Guanine*
  • Humans
  • Hydroxymethylbilane Synthase / genetics*
  • Molecular Sequence Data
  • Pedigree
  • Point Mutation*
  • Polymerase Chain Reaction
  • Porphyria, Acute Intermittent / enzymology
  • Porphyria, Acute Intermittent / genetics*
  • RNA, Messenger / genetics

Substances

  • DNA Primers
  • RNA, Messenger
  • Guanine
  • Cytosine
  • DNA
  • Hydroxymethylbilane Synthase