A presynaptic role for the cytomatrix protein GIT in synaptic vesicle recycling
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A presynaptic role for the cytomatrix protein GIT in synaptic vesicle recycling. / Podufall, Jasmin; Tian, Rui; Knoche, Elena; Puchkov, Dmytro; Walter, Alexander M.; Rosa, Stefanie; Quentin, Christine; Vukoja, Anela; Jung, Nadja; Lampe, Andre; Wichmann, Carolin; Böhme, Mathias; Depner, Harald; Zhang, Yong Q.; Schmoranzer, Jan; Sigrist, Stephan J; Haucke, Volker.
In: Cell Reports, Vol. 7, No. 5, 2014, p. 1417-1425.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - A presynaptic role for the cytomatrix protein GIT in synaptic vesicle recycling
AU - Podufall, Jasmin
AU - Tian, Rui
AU - Knoche, Elena
AU - Puchkov, Dmytro
AU - Walter, Alexander M.
AU - Rosa, Stefanie
AU - Quentin, Christine
AU - Vukoja, Anela
AU - Jung, Nadja
AU - Lampe, Andre
AU - Wichmann, Carolin
AU - Böhme, Mathias
AU - Depner, Harald
AU - Zhang, Yong Q.
AU - Schmoranzer, Jan
AU - Sigrist, Stephan J
AU - Haucke, Volker
PY - 2014
Y1 - 2014
N2 - Neurotransmission involves the exo-endocytic cycling of synaptic vesicles (SVs) within nerve terminals. Exocytosis is facilitated by a cytomatrix assembled at the active zone (AZ). The precise spatial and functional relationship between exocytic fusion of SVs at AZ membranes and endocytic SV retrieval is unknown. Here, we identify the scaffold G protein coupled receptor kinase 2 interacting (GIT) protein as a component of the AZ-associated cytomatrix and as a regulator of SV endocytosis. GIT1 and its D. melanogaster ortholog, dGIT, are shown to directly associate with the endocytic adaptor stonin 2/stoned B. In Drosophila dgit mutants, stoned B and synaptotagmin levels are reduced and stoned B is partially mislocalized. Moreover, dgit mutants show morphological and functional defects in SV recycling. These data establish a presynaptic role for GIT in SV recycling and suggest a connection between the AZ cytomatrix and the endocytic machinery.
AB - Neurotransmission involves the exo-endocytic cycling of synaptic vesicles (SVs) within nerve terminals. Exocytosis is facilitated by a cytomatrix assembled at the active zone (AZ). The precise spatial and functional relationship between exocytic fusion of SVs at AZ membranes and endocytic SV retrieval is unknown. Here, we identify the scaffold G protein coupled receptor kinase 2 interacting (GIT) protein as a component of the AZ-associated cytomatrix and as a regulator of SV endocytosis. GIT1 and its D. melanogaster ortholog, dGIT, are shown to directly associate with the endocytic adaptor stonin 2/stoned B. In Drosophila dgit mutants, stoned B and synaptotagmin levels are reduced and stoned B is partially mislocalized. Moreover, dgit mutants show morphological and functional defects in SV recycling. These data establish a presynaptic role for GIT in SV recycling and suggest a connection between the AZ cytomatrix and the endocytic machinery.
U2 - 10.1016/j.celrep.2014.04.051
DO - 10.1016/j.celrep.2014.04.051
M3 - Journal article
C2 - 24882013
VL - 7
SP - 1417
EP - 1425
JO - Cell Reports
JF - Cell Reports
SN - 2211-1247
IS - 5
ER -
ID: 334036352