Report of two novel mutations in PTHLH associated with brachydactyly type E and literature review

Am J Med Genet A. 2016 Mar;170(3):734-42. doi: 10.1002/ajmg.a.37490. Epub 2015 Dec 6.

Abstract

Autosomal-dominant brachydactyly type E is a congenital limb malformation characterized by small hands and feet as a result of shortened metacarpals and metatarsals. Alterations that predict haploinsufficiency of PTHLH, the gene coding for parathyroid hormone related protein (PTHrP), have been identified as a cause of this disorder in seven families. Here, we report three patients affected with brachydactyly type E, caused by PTHLH mutations expected to result in haploinsufficiency, and discuss our data compared to published reports.

Keywords: PTHLH; PTHrP; brachydactyly type E; short stature.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Adult
  • Bone and Bones / diagnostic imaging
  • Bone and Bones / pathology
  • Brachydactyly / diagnosis*
  • Brachydactyly / genetics*
  • Child
  • Female
  • Genetic Loci
  • Humans
  • Mutation*
  • Parathyroid Hormone-Related Protein / genetics*
  • Pedigree
  • Phenotype
  • RNA Splice Sites
  • Sequence Deletion

Substances

  • PTHLH protein, human
  • Parathyroid Hormone-Related Protein
  • RNA Splice Sites

Supplementary concepts

  • Brachydactyly, Type E