Related Experiment Video
Updated: Jun 5, 2026

09:07
Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration
Published on: March 17, 2014
Controlled demolition: Smurf1 regulates neuronal polarity by substrate switching
1Axonal Growth and Regeneration Group, Max Planck Institute of Neurobiology, Am Klopferspitz 18, 82152 Martinsried, Germany.
Neuron
|January 26, 2011
Abstract:
During axon specification, growth promoting proteins localize selectively to the growing axon. In this issue of Neuron, Cheng et al. report how selective protein degradation, controlled by a substrate switch of the ubiquitin ligase Smurf1, specifies Par6 and RhoA localization and thereby regulates neuronal polarity.
More Related Videos
Related Concept Videos
Microtubule Instability
Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated assembly and...
Cell Polarization by Rho Proteins
Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...

