Myocin protein walking an endorphin in brain

[DocM]

 

[FiB3R]

This is an artists impression, right?

Twitter replies clarify things a little 

[DocM]

It's a model of how Myocin V works. Each step along the filament is about 36 nanometers long.

[Unobscured Vision]

That's CRAZY!

[DocM]

That's how things are moved about inside cells - motor proteins, and there are other types. Their own little railway cargo system.