A nonsense mutation in the gene ROR2 underlying autosomal dominant brachydactyly type B

Clin Dysmorphol. 2013 Apr;22(2):47-50. doi: 10.1097/MCD.0b013e32835c6c8c.

Abstract

Brachydactyly type B1 (BDB1), an autosomal dominant condition characterized by terminal deficiency of the fingers and toes, results from mutations in the gene ROR2 encoding a receptor tyrosine kinase. In addition to BDB1, mutations in the gene ROR2 also cause a more severe form of skeletal dysplasia, autosomal recessive Robinow syndrome. The present study reports on a large Punjabi-speaking Pakistani family segregating autosomal dominant BDB1. In total, 34 individuals in this family showed features of BDB1. Sequence analysis of the gene ROR2 identified a previously reported nonsense mutation (c.2278C>T, p.Q760X) in all affected individuals of the family.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Substitution
  • Brachydactyly / genetics*
  • Codon, Nonsense*
  • Genes, Dominant
  • Hand / diagnostic imaging
  • Heterozygote
  • Humans
  • Male
  • Nails, Malformed / genetics
  • Pakistan
  • Pedigree
  • Phenotype
  • Radiography
  • Receptor Tyrosine Kinase-like Orphan Receptors / genetics
  • Receptor Tyrosine Kinase-like Orphan Receptors / metabolism*

Substances

  • Codon, Nonsense
  • ROR2 protein, human
  • Receptor Tyrosine Kinase-like Orphan Receptors

Supplementary concepts

  • Brachydactyly, Type B1