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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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The contactin-related protein FAR-2 defines purkinje cell clusters and labels subpopulations of climbing fibers in the developing cerebellum.

FAR-2 is a novel neural member of the Ig superfamily, which is related to F11/F3/contactin and axonin-1/TAG-1. This protein is expressed by subpopulations of Purkinje cells in the chicken cerebellum and FAR-2-positive clusters of these neurons alternate with FAR-2-negative clusters in both tangential dimensions of the cerebellar cortex. Furthermore, FAR-2 is also expressed by one type of Purkinje cell afferents, namely, the climbing fibers, and different subpopulations of these axons show distinct levels of FAR-2 expression. Homology modeling using axonin-1 as a template reveals that the four aminoterminal Ig domains of FAR-2 form a compact U-shaped structure, which is likely to contain functionally important ligand-binding sites. FAR-2 is binding to the Ig superfamily protein NgCAM/L1, but not to the related receptor NrCAM, and it is also interacting with the modular ECM protein tenascin-R. These results suggest that FAR-2 may contribute to the formation of somatotopic maps of cerebellar afferents during the development of the nervous system.[1]

References

  1. The contactin-related protein FAR-2 defines purkinje cell clusters and labels subpopulations of climbing fibers in the developing cerebellum. Plagge, A., Sendtner-Voelderndorff, L., Sirim, P., Freigang, J., Rader, C., Sonderegger, P., Brümmendorf, T. Mol. Cell. Neurosci. (2001) [Pubmed]
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