00:01
Proteins that are secreted means that once they're made, they're eventually shipped out of the cell and excreted into the environment around the cell.
00:10
So i'm going to break down the steps and how these are made and the pathway it takes between different organelles in the cell and how they're all basically when it goes from the nucleus and then eventually to the outside of the cell.
00:25
So just like all proteins, the instructions for the protein itself start in the nucleus, which is.
00:32
Step one.
00:34
So this blue dot over here on the left is the nucleus.
00:39
And let's say that there's transcription occurring.
00:42
And so then there's an mrn a strand that's produced from the nucleus and it's going to go to a ribosome, which is these black dots right here.
00:53
And these ribosomes are usually where translation occurs.
00:57
And then these special secreted proteins, usually part of the protein is synthesized at the ribosome, but not the whole thing.
01:06
And that part contains a signal that takes the protein plus the ribosome.
01:11
So i'm going to drop bound right here...