One of the most active areas of neurobiology research concerns mechanisms involved in paradigms of synaptic plasticity. A popular model for cellular leaning and memory is long term potentiation (LTP) in hippocamus. LTP requires postsynaptic influx of Ca2+ which triggers multiple biochemical pathways resulting in pre‐ and postsynaptic mechanisms enhancing long term synaptic efficiency. This article focuses on an acute postsynaptic Mechanism that can enhance responsiveness of glutamate receptors. Evidence is presented that calcium/calmodulin/dependent protein kinase II, the major potsynaptic density protein at excitatory glutaminergic synapses, can phosphorylate glutamate receptors and enhance ion current flowing through them. 1994 John Wiley & Sons, Inc.
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