Login / Signup

Homozygous 6-bp deletion of IGFALS in a prepubertal boy with short stature.

Hibiki DoiIkuko KageyamaYuko Katoh-FukuiAtsushi HattoriMaki FukamiNaoto Shimura
Published in: Human genome variation (2024)
Biallelic IGFALS variants lead to acid‒labile subunit (ALS) deficiency characterized by growth hormone resistance with or without delayed puberty. Here, we report a prepubertal boy with a homozygous 2-amino acid deletion within the fourth N-glycosylation motif (c.1103_1108del, p.N368_S370delinsT) associated with parental consanguinity. He showed short stature consistent with ALS deficiency. This case expands the mutation spectrum of IGFALS to include the elimination of only one N-glycosylation motif of ALS.
Keyphrases
  • growth hormone
  • amyotrophic lateral sclerosis
  • amino acid
  • replacement therapy
  • intellectual disability