Abstract

Neuronal microtubules have long been known to contain intraluminal particles, called MIPs (microtubule inner proteins), most likely involved in the extreme stability of microtubules in neurons. This chapter describes a cryo-electron microscopy-based assay to visualize microtubules containing neuronal MIPs. We present two protocols to prepare MIPs-containing microtubules, using either in vitro microtubule polymerization assays or extraction of microtubules from mouse hippocampal neurons in culture.

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