Deletion of 1 amino acid in Indian hedgehog leads to brachydactylyA1.
Brachydactyly type A1 is a limb malformation characterized by a uniform shortening of the middle phalanges in all digits. Mutations in the Indian hedgehog (IHH) gene were shown to be the cause of this autosomal dominant disorder. The IHH protein is known to be an important signaling molecule involved in chondrocyte formation. So far, only missense mutations in IHH have been reported to cause BrachydactylyA1. We report here on the first deletion in IHH, p.delE95, causing mild BrachydactylyA1 in a small Dutch family. This brings the total number of different mutations found to cause BDA1 to 7.
Lodder
E M
EM
Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands.
Hoogeboom
A J M
AJ
Coert
J H
JH
de Graaff
E
E
D000595:Amino Acid Sequence; D050278:Finger Phalanges / Q000002:abnormalities / Q000000981:diagnostic imaging; D006228:Hand Deformities, Congenital / Q000000981:diagnostic imaging / Q000235:genetics*; D053823:Hedgehog Proteins / Q000235:genetics*; D006801:Humans; D007223:Infant; D008297:Male; D008958:Models, Molecular; D010375:Pedigree; D010641:Phenotype; D011487:Protein Conformation; D011859:Radiography; D017384:Sequence Deletion
D053823:Hedgehog Proteins; C509246:IHH protein, human