Homozygous and compound-heterozygous mutations in TGDS cause Catel-Manzke syndrome.
Nadja Ehmke, Almuth Caliebe, Rainer Koenig, Sarina G Kant, Zornitza Stark, Valérie Cormier-Daire, Dagmar Wieczorek, Gabriele Gillessen-Kaesbach, Kirstin Hoff, Amit Kawalia, Holger Thiele, Janine Altmüller, Björn Fischer-Zirnsak, Alexej Knaus, Na Zhu, Verena Heinrich, Celine Huber, Izabela Harabula, Malte Spielmann, Denise Horn Show all
Am J Hum Genet | Published : 2014
Catel-Manzke syndrome is characterized by Pierre Robin sequence and a unique form of bilateral hyperphalangy causing a clinodactyly of the index finger. We describe the identification of homozygous and compound heterozygous mutations in TGDS in seven unrelated individuals with typical Catel-Manzke syndrome by exome sequencing. Six different TGDS mutations were detected: c.892A>G (p.Asn298Asp), c.270_271del (p.Lys91Asnfs(∗)22), c.298G>T (p.Ala100Ser), c.294T>G (p.Phe98Leu), c.269A>G (p.Glu90Gly), and c.700T>C (p.Tyr234His), all predicted to be disease causing. By using haplotype reconstruction we showed that the mutation c.298G>T is probably a founder mutation. Due to the spectrum of the amin..View full abstract