FMP Publications

Our publications are recorded in a searchable database since 2010, updates will be added regularly.

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References
Fast neurotransmitter release regulated by the endocytic scaffold intersectin
Sakaba(*), T., Kononenko, N. L., Bacetic, J., Pechstein, A., Schmoranzer, J., Yao(*), L., Barth(*), H., Shupliakov(*), O., Kobler(*), O., Aktories(*), K.; Haucke, V.
Proc Natl Acad Sci U S A, 110:8266-8271
(2013)

Tags: Molecular Pharmacology and Cell Biology (Haucke)

Abstract: Sustained fast neurotransmission requires the rapid replenishment of release-ready synaptic vesicles (SVs) at presynaptic active zones. Although the machineries for exocytic fusion and for subsequent endocytic membrane retrieval have been well characterized, little is known about the mechanisms underlying the rapid recruitment of SVs to release sites. Here we show that the Down syndrome-associated endocytic scaffold protein intersectin 1 is a crucial factor for the recruitment of release-ready SVs. Genetic deletion of intersectin 1 expression or acute interference with intersectin function inhibited the replenishment of release-ready vesicles, resulting in short-term depression, without significantly affecting the rate of endocytic membrane retrieval. Acute perturbation experiments suggest that intersectin-mediated vesicle replenishment involves the association of intersectin with the fissioning enzyme dynamin and with the actin regulatory GTPase CDC42. Our data indicate a role for the endocytic scaffold intersectin in fast neurotransmitter release, which may be of prime importance for information processing in the brain.

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Leibniz-Forschungsinstitut für Molekulare Pharmakologie im Forschungsverbund Berlin e.V. (FMP)
Campus Berlin-Buch
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