Temporal appearance of the presynaptic cytomatrix protein Bassoon during synaptogenesis

Rong Zhai, Gisela Olias, Wook Joon Chung, Robin A.J. Lester, Susanne Tom Dieck, Kristina Langnaese, Michael R. Kreutz, Stefan Kindler, Eckart D. Gundelfinger, Craig C. Garner

Research output: Contribution to journalArticlepeer-review

49 Scopus citations


Bassoon is a 420-kDa presynaptic cytomatrix protein potentially involved in the structural organization of neurotransmitter release sites. In this study, we have investigated a possible role for Bassoon in synaptogenesis and in defining synaptic vesicle recycling sites. We find that it is expressed at early stages of neuronal differentiation in which it is selectively sorted into axons. As synaptogenesis begins, Bassoon clusters appear along dendritic profiles simultaneously with synaptotagmin I, sites of synaptic vesicle recycling, and the acquisition of functional excitatory and inhibitory synapses. A role for Bassoon in the assembly of excitatory and inhibitory synapses is supported by the colocalization of Bassoon clusters with clusters of GKAP and AMPA receptors as well as GABA(A) receptors. These data indicate that the recruitment of Bassoon is an early step in the formation of synaptic junctions.

Original languageEnglish (US)
Pages (from-to)417-428
Number of pages12
JournalMolecular and cellular neurosciences
Issue number5
StatePublished - May 2000
Externally publishedYes

ASJC Scopus subject areas

  • Molecular Biology
  • Cellular and Molecular Neuroscience
  • Cell Biology


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