Familial gigantism caused by an NSD1 mutation.
A three-generation family with autosomal dominant segregation of a novel NSD1 mutation (6605G --> A, resulting in Cys2202Tyr) is reported. Haploinsufficiency of NSD1 has been identified as the major cause of Sotos syndrome. The overgrowth condition (MIM 117550) is characterized by facial anomalies, macrocephaly, advanced bone age, and learning disabilities. Manifestations in the present family include dramatically increased height, weight, and head circumference together with a long face, large mandible, and large ears, but mental deficiency was absent.
van Haelst
Mieke M
MM
Department of Clinical Genetics, Erasmus Medical Centre Rotterdam, The Netherlands.
Hoogeboom
Jeannette J M
JJ
Baujat
Genevieve
G
Brüggenwirth
Hennie T
HT
Van de Laar
Ingrid
I
Coleman
Kim
K
Rahman
Nazneen
N
Niermeijer
Martinus F
MF
Drop
Sten L S
SL
Scambler
Peter J
PJ
D000015:Abnormalities, Multiple / Q000235:genetics; D000293:Adolescent; D002648:Child; D019465:Craniofacial Abnormalities / Q000235:genetics*; D004252:DNA Mutational Analysis; D005260:Female; D005877:Gigantism / Q000235:genetics*; D000076983:Histone Methyltransferases; D011495:Histone-Lysine N-Methyltransferase; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics*; D008297:Male; D009154:Mutation; D009687:Nuclear Proteins / Q000235:genetics*; D010375:Pedigree; D013577:Syndrome
D047908:Intracellular Signaling Peptides and Proteins; D009687:Nuclear Proteins; D000076983:Histone Methyltransferases; D011495:Histone-Lysine N-Methyltransferase; C113272:NSD1 protein, human