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A splice variant of the neurotrophin receptor trkB with increased specificity for brain-derived neurotrophic factor

Strohmaier, C. and Carter, B. D. and Urfer, R. and Barde, Y. A. and Dechant, G.. (1996) A splice variant of the neurotrophin receptor trkB with increased specificity for brain-derived neurotrophic factor. The EMBO journal, Vol. 15, H. 13. pp. 3332-3337.

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Official URL: http://edoc.unibas.ch/dok/A5259539

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Abstract

The trkB gene codes for a receptor tyrosine kinase, which is essential for the development of the peripheral nervous system. This receptor can be activated by three different neurotrophins: BDNF, NT-4/5 and NT-3. The extracellular domain of trkB was found to be encoded in 10 exons corresponding to receptor subdomains previously identified on the basis of protein sequence comparisons. Exon 9 was skipped in a novel tyrosine kinase transcript of the trkB gene, designated ctrkB-Short (ctrkB-S). While the previously described trkB receptor ctrkB-Long (ctrkB-L) and trkB-S receptors were activated similarly by BDNF, trkB-S interacted poorly with NT-4/5 and NT-3 as measured by ligand binding, ligand-induced autophosphorylation and ligand-dependent activation of p21ras. Efficient activation of ctrkB-S by NT-3 was restored by a single amino acid replacement in NT-3 (D15A). Both trkB-L and trkB-S transcripts were detected in embryonic neurons.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Pharmacology/Neurobiology (Barde)
UniBasel Contributors:Barde, Yves-Alain
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Nature Publishing Group
ISSN:0261-4189
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:22 Mar 2012 14:21
Deposited On:22 Mar 2012 13:22

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