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Volume 52, issue 3
Arch. Anim. Breed., 52, 340–342, 2009
https://doi.org/10.5194/aab-52-340-2009
© Author(s) 2009. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 52, 340–342, 2009
https://doi.org/10.5194/aab-52-340-2009
© Author(s) 2009. This work is distributed under
the Creative Commons Attribution 3.0 License.

  10 Oct 2009

10 Oct 2009

Cytogenetic and radiation hybrid mapping of the bovine interleukin 4 induced 1 (IL4I1) gene to cattle chromosome 18 (Brief Report)

A. Rief1, M. Schwerin1, and T. Goldammer2 A. Rief et al.
  • 11Research Group Functional Genome Analysis, Research Institute for the Biology of Farm Animals, Dummerstorf, Germany
  • 2Research Unit Molecular Biology, Research Institute for the Biology of Farm Animals, Dummerstorf, Germany

Abstract. The interleukin 4 induced 1 (IL4I1) gene, also known as FIG1, encodes a lysosomal protein in B cells with L-amino oxidase (EC 1.4.3.2) property and a high preference for aromatic amino acid substrates implicating a fundamental role in antigene processing and presentation (MANSON et al. 2004). In human, IL4I1 has been assigned to chromosome 19q13.3-19q13.4, a hot spot for susceptibility to several autoimmune diseases (CHAVAN et al. 2002). Based on comparative genome data between human and cattle (GOLDAMMER et al. 2002), an assignment of IL4I1 to Bos taurus chromosome 18 (BTA18) has been predicted within a quantitative trait locus for somatic cell score (KÜHN et al. 2003). This prediction is supported by the putative bovine sequence for IL4I1, LOC520692, which has been assigned to BTA18 close to 56.1 megabases within the annotated bovine sequence (NCBI build Btau-4.0). Therefore, we started positional cloning of bovine IL4I1, as a candidate gene related to adaptive immunity, i.e. during udder infections in cattle. Here we present the physical assignment of the bovine IL4I1 gene by fluorescence in situ hybridization (FISH) and radiation hybrid (RH) mapping.

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