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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-7-15
pubmed:abstractText
Variegate porphyria (VP) is an autosomal-dominant disorder that is caused by inheritance of a partial deficiency of the enzyme protoporphyrinogen oxidase (EC 1.3.3.4). It is characterized by cutaneous photosensitivity and/or various neurological manifestations. Protoporphyrinogen oxidase catalyses the penultimate step of haem biosynthesis, and mutations in the PPOX gene have been coupled to VP. In the present study, sequencing analysis revealed 10 different mutations in the PPOX gene in 14 out of 17 apparently unrelated Swedish VP families. Six of the identified mutations, 3G > A (exon 2), 454C > T (exon 5), 472G > C (exon 6), 614C > T (exon 6), 988G > C (exon 10) and IVS12 + 2T > G (intron 12), are single nucleotide substitutions, while 604delC (exon 6), 916-17delCT (exon 9) and 1330-31delCT (exon 13) are small deletions, and IVS12 + 2-3insT (intron 12) is a small insertion. Only one of these 10 mutations has been reported previously. Three of the mutations were each identified in two or more families, while the remaining mutations were specific for an individual family. In addition to the 10 mutations, one previously unreported single nucleotide polymorphism was identified. Mutation analysis of family members revealed two adults and four children who were silent carriers of the VP trait. Genetic analysis can now be added to the conventional biochemical analyses and used in investigation of putative carriers of a VP trait in these families.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0009-9163
pubmed:author
pubmed:issnType
Print
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
122-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Nine novel mutations in the protoporphyrinogen oxidase gene in Swedish families with variegate porphyria.
pubmed:affiliation
Porphyria Centre Sweden, Department of Laboratory Medicine, Division of Clinical Chemistry, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't