Title: Deletion of C2orf34, PREPL and SLC3A1 causes atypical hypotonia-cystinuria syndrome
Authors: Chabrol, B
Martens, K
Meulemans, S
Cano, A
Jaeken, Jaak
Matthijs, Gert
Creemers, John # ×
Issue Date: 2009
Publisher: BMJ Publishing Group
Series Title: BMJ Case Reports vol:2009
Article number: bcr08.2008.0719
Abstract: Hypotonia-cystinuria syndrome (HCS) and 2p21 deletion syndrome are two recessive contiguous gene deletion syndromes associated with cystinuria type I. In HCS patients, only SLC3A1 and PREPL are disrupted. In the 2p21 deletion syndrome, two additional genes (C2orf34 and PPM1B) are lost. Molecular analysis of the SLC3A1/PREPL locus was performed in the patients using quantitative polymerase chain reaction (PCR) methods. HCS in both siblings was confirmed with the deletion screen of the SLC3A1/PREPL locus. Fine mapping of the breakpoint revealed a deletion of 77.4 kb, including three genes: SLC3A1, PREPL and C2orf34. Features not present in classical HCS were a mild/moderate mental retardation and a respiratory chain complex IV deficiency. We report the first patients with a deletion of SLC3A1, PREPL and C2orf34. They present with a phenotype intermediate between HCS and 2p21 deletion syndrome.
ISSN: 1757-790X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Human Genetics - miscellaneous
Section Child - Miscellaneous (-)
× corresponding author
# (joint) last author

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