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Mutations of the fumarylacetoacetate hydrolase gene in four patients with tyrosinemia, type I

โœ Scribed by Markus Grompe; Muhsen Al-Dhalimy


Book ID
102859775
Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
777 KB
Volume
2
Category
Article
ISSN
1059-7794

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โœฆ Synopsis


Tyrosinemia type I is an autosomal recessive inborn error of metabolism caused by deficiency of the enzyme fumaryl acetoacetate hydrolase (FAH, EC 3.7.1.2.). We have used reverse transcription and the polymerize chain reaction to amplify the peptide coding region of the FAH cDNA from four patients with tyrosinemia type I. Chemical mismatch cleavage analysis and DNA sequencing were utilized to determine mutant alleles in all cases. A French Canadian patient was homozygous for a splice error mutation in the 3' portion of the gene. A second patient, from a consanguineous pedigree in Iran, had the identical splice alteration. The third patient has a missense mutation, changing valine to glycine in codon 166. And finally two nonsense mutations in codons 357 and 364 were found in the fourth patient. 0


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