This is NOT what happiness looks like at a microscopic level, but the video is still cool as hell.

It IS an animation of a protein particle walking along a microtubule, just not a myosin protein. It's a kinesin protein dragging a vesicle. This is any large part of a cell that's too big to move around on its own as needed.

The image shows a myosin molecule carrying endorphin on a neuronal filament in the inner part of the parietal cortex of the brain.

Dis-banded

Just like us, fruit flies are stripy beneath the skin. These sarcomeres – repeating bands of stretchy muscle tissue – contain fibres of myosin (highlighted in green) and actin (purple) griping and pulling at each other – as the sarcomeres shorten, the muscle contracts. This is heart muscle from fruit flies (Drosophila), used to investigate common faults in human heart disease. Compared to healthy muscle at the top, the sarcomeres at the bottom are much looser and swollen – in these hearts, researchers used RNA interference to hamper the activity of a protein called filamin, often shown to be altered in heart diseases like hypertrophic cardiomyopathy. Yet altering its activity in a different way – using CRISPR gene editing to change its structure – did not affect the flies as expected. Further studies might aim to solve this mystery, while altering genes and proteins reveals more about what we do, or perhaps don’t, have in common with Drosophila.

Written by John Ankers

Image from work by Flavie Ader and colleagues

Université Paris Cité, Paris, France

Image originally published with a Creative Commons Attribution – NonCommercial – NoDerivs (CC BY-NC-ND 4.0)

Published in Biology Open, September 2022

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All of the above motors have separate head, neck, and tail domains, as does myosin XI (Figure 1.27). (...) The tail domain usually contains coiled-coil regions for dimerization, and the end of the globular tail domain binds to specific organelles or "cargo" and is called the cargo domain (see Figure 1.27B). (...) The two heads of the dimer then alternately bind to the cytoskeleton and "walk" forward while the neck flexes as ATP is hydrolyzed (see Figure 1.27C).

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

Chastisement of Our Peace- Reflected in Nature

– We are to pick up our cross and Follow Yahshua / Jesus.  Even nature obeys. Will we? – Click here for more

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京都　妙心寺　桂春院　🌸皐月🌸

kyoto myosinji keishunin 🌸satsuki azalea🌸

FUCKING LOOK HOW HARD THIS LITTLE GUY IS WORKING!!

That little guy's work makes me so happy 😄

Look at him go, carrying happiness to our brains!!

i want it back = i drag its dead weight forward except it’s about the power stroke in the cross-bridge cycle

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there is a MUSCLE twitching in my right BUTT cheek and it's so annoying I can't SLEEP

Myosin Cardiac Treatment Revolution

What's the big deal about Myosin Cardiac Treatment? it's groundbreaking because it targets the heart's very own molecular motors—myosin proteins—to improve cardiac function.

Welcome to the age of the Myosin Cardiac Treatment Revolution, which is transforming the lives of people suffering from heart conditions. So, you ask, “what’s the big deal about Myosin Cardiac Treatment?” In a nutshell, it’s a groundbreaking method that targets the heart’s very own molecular motors—myosin proteins—to help improve cardiac function. Get ready to dive deep into this cutting-edge…

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professors making quizzes and exams that don’t reflect the lecture material is going to be my villain origin story

every fkn like. year or so since high school I've had to learn the process of muscle contraction and yet after 6 yrs of learning it I still dont know or understand it remotely <3