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Neuroscience. 2009 Feb 18;158(4):1460-8. doi: 10.1016/j.neuroscience.2008.10.061. Epub 2008 Nov 8.

Interaction of the apolipoprotein E receptors low density lipoprotein receptor-related protein and sorLA/LR11.

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Department of Neurology, Massachusetts General Hospital, Harvard Medical School, MA 02129, USA.


In this study, we examined protein-protein interactions between two neuronal receptors, low density lipoprotein receptor-related protein (LRP) and sorLA/LR11, and found that these receptors interact, as indicated by three independent lines of evidence: co-immunoprecipitation experiments on mouse brain extracts and mouse neuronal cells, surface plasmon resonance analysis with purified human LRP and sorLA, and fluorescence lifetime imaging microscopy (FLIM) on rat primary cortical neurons. Immunocytochemistry experiments revealed widespread co-localization of LRP and sorLA within perinuclear compartments of rat primary neurons, while FLIM analysis showed that LRP-sorLA interactions take place within a subset of these compartments.

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