Section 7
Protein Modification, Folding, Secretion, and Degradation
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Version 6
By Boundless
By Boundless
Boundless Microbiology
Microbiology
by Boundless
4 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/20425/square/5-27-cap-structure.jpg)
mRNA Processing
Eukaryotic pre-mRNA receives a 5' cap and a 3' poly (A) tail before introns are removed and the mRNA is considered ready for translation.
![Thumbnail](../../../../../../figures.boundless-cdn.com/20050/square/protein-denaturation.jpg)
Denaturation and Protein Folding
Denaturation is a process in which proteins lose their shape and, therefore, their function because of changes in pH or temperature.
![Thumbnail](../../../../../../figures.boundless-cdn.com/20346/square/protein-folding.jpg)
Protein Folding, Modification, and Targeting
In order to function, proteins must fold into the correct three-dimensional shape, and be targeted to the correct part of the cell.
![Thumbnail](../../../../../../figures.boundless-cdn.com/18996/square/figure-16-06-02.jpeg)
Regulating Protein Activity and Longevity
A cell can rapidly change the levels of proteins in response to the environment by adding specific chemical groups to alter gene regulation.