Three Novel Deletions in the Alanine:Glyoxylate Aminotransferase Gene of Three Patients with Type 1 Hyperoxaluria

We describe three novel deletions in the human AGT gene in three patients with primary hyperoxaluria type 1, an autosomal recessive disease resulting from a deficiency of the liver peroxisomal enzyme, alanine glyoxylate aminotransferase (AGT; EC 2.6.1.44). A deletion of 4 nucleotides in the exon 6/i...

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Veröffentlicht in:Molecular genetics and metabolism 2001-11, Vol.74 (3), p.314-321
Hauptverfasser: Coulter-Mackie, Marion B., Rumsby, Gillian, Applegarth, Derek A., Toone, Jennifer R.
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container_title Molecular genetics and metabolism
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creator Coulter-Mackie, Marion B.
Rumsby, Gillian
Applegarth, Derek A.
Toone, Jennifer R.
description We describe three novel deletions in the human AGT gene in three patients with primary hyperoxaluria type 1, an autosomal recessive disease resulting from a deficiency of the liver peroxisomal enzyme, alanine glyoxylate aminotransferase (AGT; EC 2.6.1.44). A deletion of 4 nucleotides in the exon 6/intron 6 splice junction (679-IVS6+2delAAgt) is expected to cause missplicing. It would also code for a K227E missense alteration in any mRNA successfully spliced. A 2-bp deletion in exon 11 (1125–1126del CG, cDNA) results in a frameshift. A deletion of at least 5–6 kb, EX1EX5del, spanned exons 1–5 and contiguous upstream sequence. All three deletions are heterozygous with previously documented missense mutations; the intron 6 deletion with F152I, the exon 11 deletion with G82E, and EX1EX5del with the common mistargeting mutation, G170R.
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subjects AGT
AGXT
alanine glyoxylate aminotransferase
Amino Acid Sequence
Base Sequence
Child
Child, Preschool
DNA Mutational Analysis
Family Health
Female
Humans
Hyperoxaluria, Primary - enzymology
Hyperoxaluria, Primary - genetics
Infant
Male
Molecular Sequence Data
Mutation
peroxisomal targeting
peroxisome
PH1
Polymorphism, Genetic
Sequence Deletion
splice site
Transaminases - drug effects
Transaminases - genetics
Transaminases - metabolism
type 1 hyperoxaluria
title Three Novel Deletions in the Alanine:Glyoxylate Aminotransferase Gene of Three Patients with Type 1 Hyperoxaluria
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