Nanodomain coupling between Ca²⁺ channels and sensors of exocytosis at fast mammalian synapses.
Nanodomain coupling between Ca²⁺ channels and sensors of exocytosis at fast mammalian synapses.
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DOI:
10.1038/nrn3125
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发表时间:
2011-12-20
影响因子:
34.7
通讯作者:
Jonas, Peter
中科院分区:
文献类型:
--
作者:
Eggermann, Emmanuel;Bucurenciu, Iancu;Goswami, Sarit Pati;Jonas, Peter
The physical distance between presynaptic Ca2+ channels and the Ca2+ sensors that trigger exocytosis of neurotransmitter-containing vesicles is a key determinant of the signalling properties of synapses in the nervous system. Recent functional analysis indicates that in some fast central synapses, transmitter release is triggered by a small number of Ca2+ channels that are coupled to Ca2+ sensors at the nanometre scale. Molecular analysis suggests that this tight coupling is generated by protein–protein interactions involving Ca2+ channels, Ca2+ sensors and various other synaptic proteins. Nanodomain coupling has several functional advantages, as it increases the efficacy, speed and energy efficiency of synaptic transmission.
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