cDNA that encodes active agrin

Tsim, K. W. and Ruegg, M. A. and Escher, G. and Kroger, S. and McMahan, U. J.. (1992) cDNA that encodes active agrin. Neuron, Vol. 8, H. 4. pp. 677-689.

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Agrin is thought to mediate the motor neuron-induced aggregation of AChRs and AChE on the surface of muscle fibers at neuromuscular junctions. We have isolated a cDNA from a chick brain library that, based on sequence homology and expression experiments, codes for active agrin. Examination of the sequence reveals considerable similarity to homologous cDNAs previously isolated from ray and rat libraries. A conspicuous difference is an insertion of 33 bp in chick agrin cDNA, which endows the encoded protein with AChR/AChE aggregating activity. Homologous transcripts having the 33 bp insertion were detected in the ray CNS, which indicates that an insertion of similar size is conserved in agrin in many, if not all, vertebrate species. Results of in situ hybridization studies and PCR experiments on mRNA isolated from motor neuron-enriched fractions of the spinal cord indicate that, consistent with the agrin hypothesis, motor neurons contain transcripts that code for active agrin.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Neurobiology > Pharmacology/Neurobiology (Rüegg)
UniBasel Contributors:Rüegg, Markus A.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Cell Press
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:17 Apr 2019 12:30
Deposited On:22 Mar 2012 13:20

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