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Questions and Answers
What is the consequence of EF-Tu binding to GDP?
What is the role of EF-Tu in protein synthesis?
What is the function of the 30s subunit in protein synthesis?
What is the role of TF-Tu in protein synthesis?
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What is the result of the interaction between EF-Tu and the ribosome?
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What is the function of EF-4 in protein synthesis?
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What is the consequence of EF-Tu hydrolyzing GTP to GDP?
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Study Notes
Protein Synthesis
- Initiation: Begins with the binding of the initiator tRNA to the small subunit of the ribosome, forming a complex with the mRNA.
- Prokaryotic Initiation: Involves the binding of the 30s subunit to the mRNA, forming a initiation complex.
- A-site: The site on the ribosome where the aminoacyl-tRNA binds during protein synthesis.
- P-site: The site on the ribosome where the peptidyl-tRNA binds during protein synthesis.
Elongation
- Elongation Cycle: Consists of three stages: amino acid binding, peptide bond formation, and translocation.
- EF-Tu: A protein that plays a crucial role in the elongation cycle by bringing the aminoacyl-tRNA to the ribosome.
- EF-G: A protein that facilitates the translocation of the ribosome along the mRNA during protein synthesis.
- GDP: A molecule that plays a role in the elongation cycle by binding to EF-Tu and EF-G.
Termination
- Stop Codons: Specific sequences of nucleotides that signal the termination of protein synthesis.
- Release Factors: Proteins that bind to the stop codons and facilitate the release of the polypeptide chain from the ribosome.
- Termination Complex: The complex formed by the release factors and the ribosome during protein synthesis.
tRNA Binding
- Tucn Binding: The binding of the tRNA to the ribosome during protein synthesis.
- Pepthyl-tRNA: The tRNA that carries the peptide chain during protein synthesis.
- EF-Tu-toxta: The interaction between EF-Tu and the tRNA during protein synthesis.
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Description
Learn about the different stages of protein synthesis, including initiation, elongation, and the role of ribosomes and tRNA.
