Familial Sotos syndrome caused by a novel missense mutation, C2175S, in NSD1 and associated with normal intelligence, insulin dependent diabetes, bronchial asthma, and lipedema.
We report a familial Sotos syndrome in two children, boy and girl, aged 17 and 8 years, and in their 44 year old mother, who displayed normal intelligence at adult age, but suffered from insulin dependent diabetes mellitus, bronchial asthma, and severe lipedema. The underlying missense mutation, C2175S, occurred in a conserved segment of the NSD1 gene. Our findings confirm that familial cases of SS are more likely to carry missense mutations. This case report may prove useful to avoid underestimation of the recurrence rate of SS, and to demonstrate that the developmental delay may normalize, enabling an independent life and having an own family.
Zechner
Ulrich
U
Institute of Human Genetics, Johannes Gutenberg University Mainz, Mainz, Germany.
Kohlschmidt
Nicolai
N
Kempf
Olga
O
Gebauer
Konstanze
K
Haug
Karsten
K
Engels
Hartmut
H
Haaf
Thomas
T
Bartsch
Oliver
O
D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000235:genetics*; D003922:Diabetes Mellitus, Type 1 / Q000235:genetics*; D005260:Female; D005858:Germany; D006130:Growth Disorders / Q000235:genetics*; D000076983:Histone Methyltransferases; D011495:Histone-Lysine N-Methyltransferase; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics*; D052439:Lipid Metabolism Disorders / Q000235:genetics*; D008297:Male; D020125:Mutation, Missense; D009687:Nuclear Proteins / Q000235:genetics*; D013577:Syndrome
D047908:Intracellular Signaling Peptides and Proteins; D009687:Nuclear Proteins; D000076983:Histone Methyltransferases; D011495:Histone-Lysine N-Methyltransferase; C113272:NSD1 protein, human