PT - JOURNAL ARTICLE ED - , TI - Refilling the Stores AID - 10.1126/stke.2000.42.tw7 DP - 2000 Jul 25 TA - Science's STKE PG - tw7--tw7 VI - 2000 IP - 42 4099 - http://stke.sciencemag.org/content/2000/42/tw7.short 4100 - http://stke.sciencemag.org/content/2000/42/tw7.full SO - Sci. STKE2000 Jul 25; 2000 AB - G proteins (proteins that bind GTP, guanosine 5'-triphosphate) are involved in vesicle endocytosis and exocytosis in a variety of non-neuronal cells. Takahashi et al. analyzed the contribution of G proteins to fast synaptic neurotransmitter release. They introduced several nonhydrolyzable GTP analogs into the giant nerve terminals at the calyx of Held. The rate of recovery from synaptic depression was significantly influenced by these analogs. G proteins help refill synaptic vesicles after massive exocytosis. Takahashi,T., Hori, T., Kajikawa, Y., and Tsujimoto, T. (2000) The role of GTP-binding protein activity in fast central synaptic transmission. Science 289: 460-463. [Abstract] [Full Text]