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Welcome back, guys.
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We're working on problem number one in chapter 17.
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And that's all about the a -sight.
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And more importantly, how the a -site got his name.
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Now, before we talk about the a -site, we first need to actually think about the ribosome itself.
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Now, we know that the ribosome helps us create polypeptide chains.
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And that's a pretty complex process, but it's a few key features that we just need to learn to make that process easier to understand.
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One of the first things to think about is the fact that a ribosome has three binding sites for trna.
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Four total, as you know from your arena, but only three for trna.
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And those three binding sites, we usually call the e site, the p site.
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And the a site.
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And we know amino acid or polypiptide chain assembly goes in this direction.
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A great way to help think about this or just remember it is the fact that the a site we can think of as the acceptor site...