The actin cytoskeleton plays incredibly important roles in our cells.

肌动蛋骨架的细胞中扮演着至关重要的角色。

Unlike our skeletons, actin filaments are constantly being built and taken apart.

和的骨架不同，肌动蛋纤维（微丝） 一直不停的被组装和拆散。

In our muscle cells, actin structures form these regular filaments that look kind of like fabric.

的肌肉细胞中，肌动蛋结构形成了这些看起来像布料的规则纤维。

Specifically, that club-headed myosin wants to get all up-close-and-personal with the actin.

具体来说，棒状头肌球蛋想近距离接触肌动蛋。

Like the actin and myosin in our muscles that enable us to move.

就像肌肉中的肌动蛋和肌球蛋一样，它使能够移动。

You actin' mighty happy this mornin', Miss Scarlett.

你好像很快乐 斯佳丽。

Soap? Deodorant? The toughest actin' Tinactin?

肥皂? 除臭剂? 还是药效最强的牛皮癣喷雾?

Why? Why was she actin' out?

为什么 为什么她要出走？

See those funny big black-eyes folks we were runnin' around with actin' all crazy?

看到那些好玩的黑眼睛的村民来回游荡看上去像疯了一样?

They've got their own famous coupling — a pretty pair of tiny protein strands called actin and myosin.

它有自己著名的联结——一对漂亮的微小蛋，叫做肌动蛋和肌球蛋。

This movement is powered by one of my favorite proteins called actin, which is part of what's known as the cytoskeleton.

它的动作由最喜欢的蛋之一，肌动蛋驱动，这种蛋是所谓 “细胞骨架”的一部分。

They'll get a good bit o' actin' out of it an' there's nothin' children likes as much as play actin'.

他会从中得到一些表演，没有什么比表演更让孩子喜欢的了。

" Bless us all, I can see tha' has a good bit o' play actin' to do, " said Susan Sowerby.

“保佑所有人，看得出来你有很多事要做，”苏珊·索尔比说。

Namely, actin is blocked by a couple of protein bodyguards — called tropomyosin and troponin — which keep getting in the way.

也就是说，肌动蛋会被蛋的保镖阻断——原肌球蛋和肌钙蛋——它一直碍事。

But you can't just breathe in the stuff you need to build DNA, or actin, or a phospholipid bilayer.

但是你无法仅仅靠呼吸来构建脱氧核糖核酸、肌动蛋或磷脂双分子层所需的东西。

They're divided lengthwise into segments called sarcomeres, which contain two even tinier strands of protein — two different kinds of myofilaments called actin and myosin.

它纵向上被分成称为肌节的部分，其中包含两股更小的蛋——两种不同的肌丝称为肌动蛋和肌球蛋。

A sarcomere contains both thin filaments, made up mostly of two light and twisty actin strands, and thick filaments, composed of thicker, lumpy-looking myosin strands.

肌节既包含细丝，主要由两条轻盈而扭曲的肌动蛋组成，也包含粗丝，由更厚、看起来块状的肌球蛋组成。

When Martha suggested to me that I " kind o' notice the way Henry's actin', " I decided that Samson and his lordliness irked him.

当玛莎建议“稍微注意一下亨利的行为方式” 时，认为参孙和他的威严让他感到厌烦。

So after all that, with the myosin primed for action and the bodyguards out of the way, the myosin finally binds to actin, and it is beautiful.

经过这一切，当肌球蛋准备好行动，保镖离开，肌球蛋最终与肌动蛋结合，这真是太美了。

If another action potential travels down before that can happen, even more calcium gets released, which ends up exposing more actin for myosin to bind to, and that means more force in that fiber.

如果另一个动作电位此之前下降，更多的钙被释放出来，最终暴露出更多的肌动蛋来结合肌球蛋，这意味着纤维中有更多的力量。