what enzyme is necessary for the formation and transfer of the peptide bond to the next...

what enzyme is necessary for the formation and transfer of the peptide bond to the next amino acid brought by the tRNA, and what enzyme is responsible for the charging of the tRNA with another, correct, amino acid?

Expert Solution

Transfer rna or tRNA is involved in transfer of the nucleus acid message into amino acids which are the individual units of protein . At its end it has an anticodon loop which pairs with mRNA which specifies a particular amino acid while the other end has the amino acid attached via ester linkage . Protein synthesis happens when a charged tRNA , mRNA and small and large ribosomal units come together to form an intitation c complex which has a P site ( peptidyl binding) and an A site ( aminoacyl binding). The first tRNA to bind is initiator tRNA and the first amino acid is methionine . Elongation of the polypeptide chain occurs when anticodon of the second charged tRNA binds to next mRNA codon in the A site of initiator c complex.

P and A sites are close and this causes the carboxy terminus at P site to form a stable peptide bond with the nucleophilic amino terminus at A site . This formation of the peptide bond is catalysed by peptidyl transferase . It's a ribozyme located in the larger ribosomal unit .

The tRNA which has an amino acid attached to it is called a charged tRNA .The enzyme responsible for this aminoacyl tRNA synthetase.

gladiator answered 2 years ago

Formation of a peptide bond during translation is catalyzed by a.one of the EFs. b.the tRNA...

Formation of a peptide bond during translation is catalyzed by a.one of the EFs. b.the tRNA sitting in the P site of the ribosome. c. one of the proteins within the large ribosomal subunit. d.a rRNA in the large ribosomal subunit. e.the Kozac sequence formed when the large and small ribosomal subunits combine.

(1) Briefly explain why no energy is expended at the moment of peptide bond formation during...

(1) Briefly explain why no energy is expended at the moment of peptide bond formation during protein synthesis. (2) You discover a new antibiotic that specifically acts to inhibit peptide bond formation but does not affect any steps before that. What specific part of the ribosome (name it) would this inhibitor most likely affect DIRECTLY? (3) During translation translocation, it can be said that a peptidyl tRNA moves to the P site and a deacylated tRNA moves to the E...

The ribosome catalyzes the formation of peptide bond between two amino acids. which of the following...

The ribosome catalyzes the formation of peptide bond between two amino acids. which of the following statements is true? A) the ribosomal large subunit binds to the mRNA B) The large and a small subunits of a ribosome once assembled will stay together until the degraded by the proteasome C) The catalytic site for peptide bond formation is formed primarily from an rRNA D) The number of rRNA molecules that assemble a ribosome exceeds the number of protein

What might happen if you transfer an alpha helix peptide from a lipid environment to an...

What might happen if you transfer an alpha helix peptide from a lipid environment to an aqueous?

A protease is an enzyme that catalyzes the hydrolysis of the peptide bonds of target proteins....

A protease is an enzyme that catalyzes the hydrolysis of the peptide bonds of target proteins. How might a protease bind a target protein so that its main chain becomes fully extended in the vicinity of the vulnerable peptide bond? The hint that we got was this: look for a way the protease might stabilize the substrate during hydrolysis I'm open to several possibilities at this point but please explain your answer in detail.

What is necessary for a bond to be considered polar? What is necessary for a molecule...

What is necessary for a bond to be considered polar? What is necessary for a molecule to be polar?

Peptide decomposition is one of the key processes of digestion, where a peptide bond is broken...

Peptide decomposition is one of the key processes of digestion, where a peptide bond is broken into an acid group and an amine group. We can describe this reaction as follows: Peptide(aq) + H20(l) = acid group(aq) + amine group(aq) If we place 1.0 mole of peptide into 1.0 L water, what will be the equilibrium concentrations of all species in this reaction? Assume the K value for this reaction is 3.1x10-5.

1.What type of bond holds amino acids together in a polypeptide chain? A. Peptide Bond B....

1.What type of bond holds amino acids together in a polypeptide chain? A. Peptide Bond B. Phosphodiester Bond C. Hydrogen Bond 2.Termination of translation takes place when the ribosome reaches: A. A primer B. The promoter C. The start codon D. A stop codon 3. Which of the following is Different between prokaryotic and eukaryotic translation? A. tRNA brings amino acids to the ribosome B. Codon is complementary to anticodon C. Coding dictionary D. Occurs in same place as...

What feature of molecular orbital theory is responsible for bond formation?

when would formation of a derivative be a necessary step in the experiment

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