|Citation||Ohyama, T., Verstreken, P., Ly, C.V., Rosenmund, T., Rajan, A., Tien, A.C., Haueter, C., Schulze, K.L., Bellen, H.J. (2007). Huntingtin-interacting protein 14, a palmitoyl transferase required for exocytosis and targeting of CSP to synaptic vesicles. J. Cell Biol. 179(7): 1481--1496. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||Posttranslational modification through palmitoylation regulates protein localization and function. In this study, we identify a role for the Drosophila melanogaster palmitoyl transferase Huntingtin-interacting protein 14 (HIP14) in neurotransmitter release. hip14 mutants show exocytic defects at low frequency stimulation and a nearly complete loss of synaptic transmission at higher temperature. Interestingly, two exocytic components known to be palmitoylated, cysteine string protein (CSP) and SNAP25, are severely mislocalized at hip14 mutant synapses. Complementary DNA rescue and localization experiments indicate that HIP14 is required solely in the nervous system and is essential for presynaptic function. Biochemical studies indicate that HIP14 palmitoylates CSP and that CSP is not palmitoylated in hip14 mutants. Furthermore, the hip14 exocytic defects can be suppressed by targeting CSP to synaptic vesicles using a chimeric protein approach. Our data indicate that HIP14 controls neurotransmitter release by regulating the trafficking of CSP to synapses.|
What does this section display?
What does this section not display?
This section does not currently display links that were removed or gene model changes.
|All updates||Click here to see a list of all updates to this record from FB2010_08 and on.|
|Language of Publication||English|
|Additional Languages of Abstract|
|Also Published As|
|Abbreviation||J. Cell Biol.|
|Title||Journal of Cell Biology|
|Data from Reference|
|Natural transposons (1)|