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- W4234339747 abstract "Hereditary coproporphyria is a dominantly inherited disorder of porphyrin metabolism caused by a partial deficiency of coproporphyrinogen oxidase, the sixth enzyme in the heme synthetic pathway. We investigated the molecular basis of hereditary coproporphyria in three unrelated patients, amplifying each exon of the coproporphyrinogen oxidase gene and performing heteroduplex analysis to look for mutations. Unique heteroduplex patterns were noted in exons 2, 3, and 6. Sequencing revealed different mutations in each patient: a G→A point mutation encoding a glutamic acid to lysine substitution at codon 101 (E101K), a C→T point mutation encoding a proline to serine substitution at codon 149 (P149S), and a one base-pair insertion in exon 6 (968insT). No other mutations were found on sequencing the remaining exons and their intron-exon junctions. The two point mutations affect amino acids that are conserved in all species studied to date. The one base-pair insertion in exon 6 is the first frameshift mutation to be described in the coproporphyrinogen oxidase gene. This study adds three new mutations to those that have been previously reported, and all have been restricted to single families. These results indicate that hereditary coproporphyria is a genetically heterogeneous disease. Hum Mutat 10:196–200, 1997. © 1997 Wiley-Liss, Inc." @default.
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- W4234339747 date "1997-01-01" @default.
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- W4234339747 title "Hereditary coproporphyria: Exon screening by heteroduplex analysis detects three novel mutations in the coproporphyrinogen oxidase gene" @default.
- W4234339747 doi "https://doi.org/10.1002/(sici)1098-1004(1997)10:3<196::aid-humu3>3.3.co;2-e" @default.
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