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Related Experiment Videos

Polymorphisms in olfactory receptor genes: a cautionary note.

A Ziegler1, A Ehlers, S Forbes

  • 1Institut für Immungenetik, Universitätsklinikum Charité, Humboldt-Universität zu Berlin, Berlin, Germany. andreas.ziegler@charite.de

Human Immunology
|February 13, 2001
PubMed
Summary
This summary is machine-generated.

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Human olfactory receptor (OR) gene FAT11 sequences in Hutterites may originate from two distinct genes, not different alleles. This finding suggests a need to re-evaluate recombination rates in the HLA region.

Area of Science:

  • Genetics
  • Human genomics
  • Olfactory receptor gene family

Background:

  • Human olfactory receptor (OR) genes are numerous and organized in clusters across chromosomes.
  • These OR genes exhibit sequence similarities at both amino acid and nucleotide levels despite not always being closely related.

Purpose of the Study:

  • To investigate the origin of the HLA complex-linked OR sequence FAT11 in Hutterites.
  • To clarify whether observed polymorphisms in FAT11 represent allelic variation or distinct gene sequences.

Main Methods:

  • Sequence analysis of the FAT11 locus.
  • Comparison of FAT11 sequences with known related OR genes (hs6M1-12, hs6M1-16, hs6M1-13P).

Main Results:

  • The FAT11 sequence appears to be derived from two closely related, linked OR genes: hs6M1-12 and hs6M1-16.

Related Experiment Videos

  • Two described polymorphisms in FAT11 likely represent distinct sequences from hs6M1-12 and another HLA-linked locus, hs6M1-13P, rather than allelic differences.

    • Conclusions:

    • The polymorphisms in FAT11 do not represent allelic variation at a single locus.
    • Recombination rates in Hutterites within the telomeric region of HLA-G may require re-evaluation based on these findings.