Molecular Genetics and Gene Therapy Aspects of Phenylalanine Hydroxylase (PAH) Related Hyperphenylalaninemias

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Molecular Genetics and Gene Therapy Aspects of Phenylalanine Hydroxylase (PAH) Related Hyperphenylalaninemias

Volume 5 • Issue 6 • 1000e125 J Genet Syndr Gene Ther ISSN: 2157-7412 JGSGT, an open access journal Hyperphenylalaninemias (HPAs; OMIM 261600) are related to phenylalanine hydroxylase (PAH; OMIM *612349) deficiency; a hepatic enzyme, and are characterized by moderate and/or high levels of the amino acid phenylalanine and reduction of tyrosine. High levels of phenylalanine and low of tyrosine ch...

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Genotype-predicted tetrahydrobiopterin (BH4)-responsiveness and molecular genetics in Croatian patients with phenylalanine hydroxylase (PAH) deficiency.

Specific mutations in the gene encoding phenylalanine hydroxylase (PAH), located on chromosome 12q22-24.1, are linked to tetrahydrobiopterin (BH4; sapropterin)-responsive phenylketonuria (PKU). Diagnosis is usually done through the newborn screening for PKU, followed by a BH4 loading test. So far, more than 60 mutant alleles, presenting with a substantial residual PAH activity (average approxim...

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Phenylalanine hydroxylase: metabolic aspects.

Phenylalanine hydroxylase [L-phenylalanine,tetrahydropteridine :oxygen oxidoreductase (4-hydroxylating); EC 1.14.16.11 catalyses the first reaction in the irreversible catabolism of the essential amino acid phenylalanine. Studies of the isolated enzyme and of phenylalanine metabolism in viuo and in oitro support the view that the hydroxylase plays the major role in regulating phenylalanine disp...

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Molecular genetics of tetrahydrobiopterin-responsive phenylalanine hydroxylase deficiency.

Mutations in the phenylalanine hydroxylase (PAH) gene result in phenylketonuria (PKU). Tetrahydrobiopterin (BH(4))-responsive hyperphenylalaninemia has been recently described as a variant of PAH deficiency caused by specific mutations in the PAH gene. It has been suggested that BH(4)-responsiveness may be predicted from the corresponding genotypes. Data from BH(4) loading tests indicated an in...

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genetic diversity and balancing selection within the human phenylalanine hydroxylase (pah) gene region in iranian population

background: genetic diversity of three polymorphic markers in the phenylalanine hydroxylase (pah) gene region including pvu ii (a), pahstr and msp i were investigated. methods: unrelated individuals (n=139) from the iranian populations were genotyped using primers specific to pah gene markers including pvu ii(a), msp i and pahstr. the amplified products for pvu ii(a), msp i were digested using ...

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ژورنال

عنوان ژورنال: Journal of Genetic Syndromes & Gene Therapy

سال: 2014

ISSN: 2157-7412

DOI: 10.4172/2157-7412.1000e125