Identification, characterization, and mapping of a mouse homolog of the gene mutated in Nijmegen breakage syndrome

Cytogenet Cell Genet. 1999;87(1-2):80-4. doi: 10.1159/000015396.

Abstract

The rare autosomal recessive disorder Nijmegen breakage syndrome (NBS) results from mutations in the NBS1 gene on human chromosome 8q21. A mouse homolog of the NBS1 gene was isolated and its nucleotide sequence determined. Somatic cell hybrid analysis and fluorescence in situ hybridization were used to map this gene, Nbn, to mouse chromosome band 4A. Northern blotting revealed comparable levels of Nbn transcripts in most tissues in the mouse. However, transcripts were elevated 10-20 fold in the testes, consistent with a possible role for the product of the Nbn gene in meiotic recombination.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Cell Cycle Proteins / chemistry
  • Cell Cycle Proteins / genetics*
  • Cloning, Molecular
  • Expressed Sequence Tags
  • Humans
  • Hybrid Cells
  • In Situ Hybridization, Fluorescence
  • Male
  • Mice
  • Molecular Sequence Data
  • Mutation / genetics*
  • Nuclear Proteins*
  • Organ Specificity
  • Physical Chromosome Mapping*
  • RNA, Messenger / analysis
  • RNA, Messenger / genetics
  • Sequence Alignment
  • Sequence Homology, Nucleic Acid*
  • Syndrome
  • Testis / metabolism

Substances

  • Cell Cycle Proteins
  • NBN protein, human
  • Nuclear Proteins
  • RNA, Messenger

Associated data

  • GENBANK/AF076687