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Substance Name: Fragile X mental retardation protein
RN: 139135-51-6


  • A RNA-binding protein that is found predominately in the CYTOPLASM. It helps regulate GENETIC TRANSLATION in NEURONS and is absent or under-expressed in FRAGILE X SYNDROME.
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Names and Synonyms

Name of Substance

  • Fragile X mental retardation protein

MeSH Heading

  • Fragile X mental retardation protein


  • Fmr-1 gene product
  • FMR-1 protein
  • Fmr1 protein, fragile X
  • Fmrp (protein)
  • Fragile X mental retardation-1 protein

Systematic Name

  • Protein (human clone BC72/BC22 gene FMR-1 C-terminal fragment reduced)

Registry Numbers

CAS Registry Number

  • 139135-51-6

System Generated Number

  • 0139135516