What happens to proteins during phosphorylation in signaling pathways?
Understand the Problem
The question is asking about the effects of phosphorylation on proteins within signaling pathways. Phosphorylation is a biochemical process that can modify the activity, function, or stability of proteins. The question presents multiple-choice options to determine the correct effect of phosphorylation on proteins.
Answer
Protein phosphorylation regulates signaling pathways by altering protein activity via phosphate group transfer from ATP to amino acids.
Protein phosphorylation activates or deactivates proteins, playing a key role in signaling pathways. It involves transferring a phosphate group from ATP to amino acid residues like serine, threonine, or tyrosine, catalyzed by protein kinases. This modification can change protein function and activity.
Answer for screen readers
Protein phosphorylation activates or deactivates proteins, playing a key role in signaling pathways. It involves transferring a phosphate group from ATP to amino acid residues like serine, threonine, or tyrosine, catalyzed by protein kinases. This modification can change protein function and activity.
More Information
Phosphorylation is crucial for cellular activities, including metabolism, division, and growth, acting as a precise and dynamic control mechanism in cell signaling.
Tips
A common mistake is forgetting that phosphorylation is a reversible modification, where phosphatases can remove the phosphate group.
Sources
- The crucial role of protein phosphorylation in cell signaling and its ... - pmc.ncbi.nlm.nih.gov
- Protein phosphorylation - Wikipedia - en.wikipedia.org
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