In my last post, I wrote about insulin and interesting features of the insulin structure. Some of the things I learned were really surprising. For example, I was surprised to learn how similar pig and human insulin are. I hadn't considered this before, but this made me wonder about the human insulin we used to give to one of our cats. How do cat and human insulin compare?
It turns out, that all vertebrates produce insulin, even frogs and zebra fish. Human preproinsulin is only 110 amino acids long and even human and fish insulin are pretty similar. Of course, this observation only leads…
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