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

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The mouse homeodomain protein OTX2 regulates NCAM promoter activity.

The homeodomain transcription factor OTX2 is involved in defining regional identities in developing rostral brain. It appears to participate in morphogenetic processes leading to the formation of boundaries and substrates for early axon growth, processes which are in the end largely based on site-specific expression of cell adhesion molecules. Here, we present evidence that a candidate target of OTX2 is the gene encoding the neural cell adhesion molecule, NCAM. When Otx2 is transfected into NIH3T3 cells, NCAM protein expression is upregulated. Moreover, while mock-transfected cells display only the 140 kDa-isoform of NCAM, Otx2 transfected cells express also the two other major isoforms (NCAM-120 and -180), in agreement with the presence of the corresponding transcripts in Northern blots. In addition, transient expression of Otx2 in COS7 cells is able to dramatically enhance the transcriptional activity of the NCAM promoter. Taken together, our results argue for a regulation of NCAM expression by OTX2.[1]

References

  1. The mouse homeodomain protein OTX2 regulates NCAM promoter activity. Nguyen Ba-Charvet, K.T., von Boxberg, Y., Godement, P. Brain Res. Mol. Brain Res. (1999) [Pubmed]
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