Temtamy preaxial brachydactyly syndrome

Definition:

Temtamy preaxial brachydactyly syndrome (TPBS) is an autosomal recessive rare disorder that is caused by the mutations in the CHSY1 gene. CHSY1 encodes chondroitin synthase 1 involving in the biosynthesis of chondroitin sulfate and perhaps affecting bone morphogenetic protein (BMP) signaling. The loss-of-function mutations in the protein cause defects in multiple development processes. The major features include limb malformations, short stature, hearing loss, delayed motor and mental development, facial dysmorphism and dental anomalies.

References:

[1]. Gulab Sher, et al. A novel CHSY1 gene mutation underlies Temtamy preaxial brachydactyly syndrome in a Pakistani family. Eur J Med Genet. 2014 Jan;57(1):21-4. [Content Brief]

[2]. Yun Li, et al. Temtamy preaxial brachydactyly syndrome is caused by loss-of-function mutations in chondroitin synthase 1, a potential target of BMP signaling. Am J Hum Genet. 2010 Dec 10;87(6):757-67. [Content Brief]

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