A missense mutation, p.V132G, in the X-linked spermine synthase gene (SMS) causes Snyder-Robinson syndrome

  • L. E. Becerra-Solano
  • , J. Butler
  • , G. Castañeda-Cisneros
  • , D. E. McCloskey
  • , X. Wang
  • , A. E. Pegg
  • , C. E. Schwartz
  • , J. Sánchez-Corona
  • , J. E. García-Ortiz

    Research output: Contribution to journalArticlepeer-review

    50 Scopus citations

    Abstract

    Snyder-Robinson syndrome (SRS, OMIM 309583) is a rare X-linked syndrome characterized by mental retardation, marfanoid habitus, skeletal defects, osteoporosis, and facial asymmetry. Linkage analysis localized the related gene to Xp21.3-p22.12, and a G-to-A transition at point +5 of intron 4 of the spermine synthase gene, which caused truncation of the SMS protein and loss of enzyme activity, was identified in the original family. Here we describe another family with Snyder-Robinson syndrome in two Mexican brothers and a novel mutation (c.496T>G) in the exon 5 of the SMS gene confirming its involvement in this rare X-linked mental retardation syndrome.

    Original languageEnglish (US)
    Pages (from-to)328-335
    Number of pages8
    JournalAmerican Journal of Medical Genetics, Part A
    Volume149
    Issue number3
    DOIs
    StatePublished - Mar 2009

    All Science Journal Classification (ASJC) codes

    • Genetics
    • Genetics(clinical)

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