Related Experiment Video
Updated: Jun 16, 2026

Characterizing the Composition of Molecular Motors on Moving Axonal Cargo Using "Cargo Mapping" Analysis
Published on: October 30, 2014
Armadillo motifs involved in vesicular transport
Harald Striegl1, Miguel A Andrade-Navarro, Udo Heinemann
1Max-Delbrück-Centrum für Molekulare Medizin, Berlin, Germany.
Abstract:
Armadillo (ARM) repeat proteins function in various cellular processes including vesicular transport and membrane tethering. They contain an imperfect repeating sequence motif that forms a conserved three-dimensional structure. Recently, structural and functional insight into tethering mediated by the ARM-repeat protein p115 has been provided. Here we describe the p115 ARM-motifs for reasons of clarity and nomenclature and show that both sequence and structure are highly conserved among ARM-repeat proteins. We argue that there is no need to invoke repeat types other than ARM repeats for a proper description of the structure of the p115 globular head region. Additionally, we propose to define a new subfamily of ARM-like proteins and show lack of evidence that the ARM motifs found in p115 are present in other long coiled-coil tethering factors of the golgin family.
Related Concept Videos
Clathrin Coated Vesicles
Vesicular Tubular Clusters
With the help of motor proteins such...
The Movement of Organelles and Vesicles
COP Coated Vesicles
Pinching-off of Coated Vesicles
Introduction to Membrane Traffic
The transport of soluble and membrane proteins is mediated by transport vesicles that collect cargo from one cellular compartment and deliver it to another by fusing with the target organelle membrane. The Rab...

