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Hum Mutat. 2001 Nov;18(5):460.

Seven novel mutations in the ORNT1 gene (SLC25A15) in patients with hyperornithinemia, hyperammonemia, and homocitrullinuria syndrome.

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1
Molecular Medicine, IRCCS-Bambino Gesù, Rome; Italy.

Abstract

Eight unrelated Italian patients with the hyperornithinemia, hyperammonemia, and homocitrullinuria (HHH) syndrome were analyzed for mutations in the ORNT1 gene. Seven novel mutations were identified (Q89X, G27R, G190D, R275Q, c.861insG, c.164insA, and IVS5+1G-->A). Other previously described variants were a heterozygous deletion of a phenylalanine residue (F188del) in one allele and the R179X in two. The G27R mutation was carried by two patients. Analyses of ORNT1 mRNA in four patients showed that mutant alleles were stable and of the predicted size. The current study expands the spectrum of mutations in ORNT1 gene.

PMID:
11668643
DOI:
10.1002/humu.1221
[Indexed for MEDLINE]
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