What is the role of GTP hydrolysis by EF-G in translation elongation?
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What is the role of GTP hydrolysis by EF-G in translation elongation?
13. Which of these statements about elongation factors is true? (A) EF-Ts binds GTFP (C) EF-Ts is a GTPase (D) EF-G doesn't bind to GTP (B) EF-G is a GTPase 14. Which of these is NOT a proofreading mechanism for translation elongation? (A) tRNA accomodation (B) Ribosome 16S rRNA (C) EF-G GTP hydrolysis (D) EF-Tu GTP hydrolysis
A) Two separate GTP hydrolysis reactions are involved in translation elongation. What are the differences between these two steps? For each step, predict the consequences of a mutation that causes GTP hydrolysis to be a) faster and b) slower. B) Amino acid building blocks are chemically and structurally diverse and also more chemically reactive compared to nucleotides. Draw and explain three or four relevant chemical structures to demonstrate this point. C) Why is protein structure difficult to predict simply by...
6) Please describe the function of the Shine-Dalgarno sequence in prokaryotic translation initiation. (10 points) 7) During translation elongation in procaryotes, the interplay between EF-Tu and EF-TS regulate tRNA charging to the A site of the ribosome. Please describe in detail the sequence of events that take place during tRNAEFTU GTR ternary complex formation. Explain how the EF-Tu GDP that is discharged from the ribosome is converted to EF- Tu GTR that is the competent complex for translation elongation? What is...
What stages of transcription requires GTP hudrolysis? (Please specify which stages) What stages of translation requires GTP hydrolysis? (Please specify which stages, not how many GTP is used) Please list what statement applies to Intermediate filaments (IF), microtubules (MTs) or actin filaments (AF). Some statements may apply to more than one filament type. a) End is stabilized with a GTP-cap b) Polymerization occurs at the + end c) Filament does not have polar ends d) Motor proteins can move along...
What terminates signaling by an activated G, subunit ? GMP phosphorylation GTP hydrolysis GDP/GTP exchange GDP hydrolysis GDP phosphorylation
State the physical and behavioral consequences associated with a GTP-binding protein when it undergoes GTP hydrolysis?
Which of the following accurately describes a step in GTP-driven nuclear transport? GTP hydrolysis powers a membrane-bound transporter protein. GTP-bound cargo interacts specifically with the protein fibrils of the pore. Binding of Ran-GTP to the receptor releases the cargo protein. Ran-GDP escorts the nuclear receptor back to the cytosol.
The energy required for tubular polymerization is provided by the hydrolysis of GTP. - True - False
Which of the following statements about the enzymes that take part in prokaryotic protein synthesis is correct? Peptidyl transferase is a protein that carries out its action by a mechanism involved in mimicking a tRNA. EF-G, the factor in the translocation of prokaryotic protein synthesis, is a protein that carries out its action by a mechanism that mimicks an amino acyltRNA-EF-Tu-GTP complex. EF-G, the factor involved in prokaryotic protein synthesis, mimicks EF- Tu because they both bind GTP. EF-Tu, the...
How is the factor-binding center important for translation elongation and termination?