Localization of human flavin-containing monooxygenase genes FMO2 and FMO5 to chromosome 1q

Genomics. 1996 Jun 15;34(3):426-9. doi: 10.1006/geno.1996.0308.


The human flavin-containing monooxygenase (FMO) gene family comprises at least five distinct members (FMO1 to FMO5) that code for enzymes responsible for the oxidation of a wide variety of soft nucleophilic substrates, including drugs and environmental pollutants. Three of these genes (FMO1, FMO3, and FMO4) have previously been localized to human chromosome 1q, raising the possibility that the entire gene family is clustered in this chromosomal region. Analysis by polymerase chain reaction of DNA isolated from a panel of human-rodent somatic cell hybrids demonstrates that the two remaining identified members of the FMO gene family, FMO2 and FMO5, also are located on chromosome 1q.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Base Sequence
  • Chromosome Mapping
  • Chromosomes, Human, Pair 1*
  • Cloning, Molecular
  • Codon
  • Cricetinae
  • DNA Primers
  • DNA, Complementary
  • Humans
  • Hybrid Cells
  • Liver / enzymology
  • Molecular Sequence Data
  • Multigene Family*
  • Oxygenases / genetics*
  • Oxygenases / metabolism
  • Polymerase Chain Reaction
  • Recombinant Proteins / biosynthesis
  • Recombinant Proteins / metabolism
  • Substrate Specificity


  • Codon
  • DNA Primers
  • DNA, Complementary
  • Recombinant Proteins
  • Oxygenases
  • dimethylaniline monooxygenase (N-oxide forming)