There's all sorts. There's definitely proteins that do single steps like that, but also proteins that do more complex sequences of steps. Sometimes the more com

There's all sorts. There's definitely proteins that do single steps like that, but also proteins that do more complex sequences of steps. Sometimes the more complex proteins are assisted by signaling proteins and whatnot. I can't recommend getting "The machinery of life" enough. It's an incredible book with a lot of pictures explaining all this sort of thing. It gives you quite a good intuitive understanding of the chaotic environment inside cells.