The Max Planck Institute for Brain Research, Max von Laue Strasse 4, 60438 Frankfurt, Germany.
Nat Rev Neurosci. 2013 Sep;14(9):638-48. doi: 10.1038/nrn3546. Epub 2013 Jul 31.
Like all cells, neurons are made of proteins that have characteristic synthesis and degradation profiles. Unlike other cells, however, neurons have a unique multipolar architecture that makes ∼10,000 synaptic contacts with other neurons. Both the stability and modifiability of the neuronal proteome are crucial for its information-processing, storage and plastic properties. The cell biological mechanisms that synthesize, modify, deliver and degrade dendritic and synaptic proteins are not well understood but appear to reflect unique solutions adapted to the particular morphology of neurons.
与所有细胞一样,神经元由具有特征性合成和降解谱的蛋白质组成。然而,与其他细胞不同的是,神经元具有独特的多极结构,可与其他神经元形成约 10000 个突触接触。神经元蛋白质组的稳定性和可修饰性对于其信息处理、存储和可塑性都是至关重要的。合成、修饰、传递和降解树突和突触蛋白的细胞生物学机制尚未得到很好的理解,但似乎反映了适应神经元特殊形态的独特解决方案。