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Chapter 6

Chapter 6

Protein Function

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Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their …
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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs …
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Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein …
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Enzymes are proteins made of amino acids. The functional group of each constituent amino acid catalyzes a wide variety of chemical reactions via ionic …
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Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand …
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Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, …
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Guanine nucleotide-binding proteins (G-proteins), also known as GTPases, are a superfamily of proteins that regulate many cellular processes, such as cell …
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Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an …
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Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. …
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Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical …
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Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures …
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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other …
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Proteins are an important class of biological macromolecules that play many key roles in cellular functions including gene expression, catalyzing …
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Cells sense and respond to physical cues in their environment by converting mechanical stimuli into biochemically-detectable signals in a process called …
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Numerous intracellular proteins physically interact in accordance with their intracellular and extracellular circumstances. Indeed, cellular functions …