In this video, we're going to introduce our map of eukaryotic gene regulation, which is down below in our image right here. And so notice that this image is showing you gene expression, where genes or DNA can be used as a template to build proteins in the process called translation. And recall from our previous lesson videos that eukaryotic gene regulation can occur at any of these five stages of regulation, that we have numbered here, 1, 2, 3, 4, and 5. And so the first level that regulation can occur at is chromatin rearrangements or just chromatin modifications. As we move forward in our course, we're going to talk about these stages of gene regulation in their particular order. We'll start off with chromatin rearrangements or chromatin modifications, which includes the difference between heterochromatin and euchromatin, histone acetylation, and DNA methylation, all topics that we'll talk about moving forward.
Then we'll move on to transcriptional control, which is going to control the process of transcription, and that includes general transcription factors and specific transcription and processing of mRNA to provide protection for mRNA. Then we'll move on to translational control, such as things like RNA interference. And then last but not least, we'll talk about post-translational control, which includes protein modifications, such as protein ubiquitination. And so, really, what you see here, this is a map, and you can use this just like you would use a map to guide you throughout our lesson moving forward. So you can make predictions about what we're going to cover next and the order of the topics. We're going to start off talking about chromatin rearrangements, working our way down, and then shifting over to transcriptional control, working down, and then post-transcriptional, and so on in the order that you see here.
Over here on the right, notice we have a trimmed-up version of this same exact map. It's just a smaller version, and this is a version of the map that we're going to use moving forward as a reference. What you'll notice is that it has chromatin modification, it has transcriptional control, RNA processing, which is post-transcriptional control, then it has mRNA degradation, which is a type of post-transcriptional control. Then it has translation, which would be translational control. This image that you see here is a representation and a consolidation of this large map that we have of eukaryotic gene regulation. What you'll notice about this map is that it's actually representing a cell, and the whole box here represents the cell and inside of the cell you have this circle here, which represents the nucleus. Chromatin modifications, transcription, and RNA processing, post-transcriptional controls are going to occur within the nucleus of a eukaryotic organism. But other gene regulation strategies such as mRNA degradation, translation, translational control, and post-translational modification, they occur in the cytoplasm of the cell. We'll be able to focus on those details as well as we move forward in our course.
But for now, this here concludes our brief introduction to the map of eukaryotic gene regulation. And again, you can reference this map as we move forward in our course. We're going to start off talking about chromatin rearrangements or chromatin modifications, and I'll see you all in that video.