What is the role of amino-acyl-tRNA-synthetases?

Expert Solution

gladiator answered 1 year ago

1.What is the role of histone acetylation in eukaryotic cells? 2.What is the role of amino-acyl-tRNA-synthetases?

..... The concentration of three different aminoacyl-tRNA synthetases, associated with three different amino acids, are found...

..... The concentration of three different aminoacyl-tRNA synthetases, associated with three different amino acids, are found in much lower than normal concentrations in the cytosol of an animal cell. In your own words, describe how this may impact the rate of A) translation, and B) the citric acid cycle. Explain your reasoning for each. Please clearly label your responses as A) and B).

Describe the two-part reaction carried out by an amino acyl tRNA synthetase. Show the reactants, the...

Describe the two-part reaction carried out by an amino acyl tRNA synthetase. Show the reactants, the products, and the energy source that is used to drive the reaction forward. Show how a tRNA is finally modified by this reaction.

1. Which type of bonding is catalyzed by aminoacyl-tRNA-synthetases to form between amino acids and tRNAs?...

1. Which type of bonding is catalyzed by aminoacyl-tRNA-synthetases to form between amino acids and tRNAs? Select one: A. Hydrogen bond B. Salt bridge C. Peptide bond D. Ester bond E. Glycosidic bond 2.What is added to methionine when it is used as the start codon? Select one: A. Phosphate B. Formyl C. N-acetyl D. Sulphate E. rRNA 3. In translation (initiation, elongation and termination), the energy source is provided by ______. Select one: A. ATP B. TTP C. GTP...

6. Aminoacyl-tRNA synthetases catalyses _____ 1. DNA replication 2. transcriptional termination 3. the attachment of amino...

6. Aminoacyl-tRNA synthetases catalyses _____ 1. DNA replication 2. transcriptional termination 3. the attachment of amino acids to the tRNA molecules. 4. the binding of mRNA to the 30S subunit. 5. the removal of the polypeptide from tRNA in the P site and transferal to the amino acid at the A site 7. If the strand “5'-TACGCCT-3'” is a template strand, what would the mRNA strand look like? 1. 5'-AGGCGUA-3' 2. 3'-AUGCGGA-5' 3. 3'-ATGCGGA-5' 4. 5'-AGGCGTA-3' 5. 5'-UGGCGTU-3' 8. A...

Draw the mechanism for the two steps reaction catalyzed by aminoacyl-tRNA synthetases that gives rise to...

Draw the mechanism for the two steps reaction catalyzed by aminoacyl-tRNA synthetases that gives rise to "activated" tRNA

What are the consequences of deficiencies of the acyl-CoA dehydrogenase enzyme? Discuss the normal role of...

What are the consequences of deficiencies of the acyl-CoA dehydrogenase enzyme? Discuss the normal role of the enzyme, and how reduced activity impacts fatty acid metabolism. What metabolites used for fuel do you expect to be higher in the blood? What metabolites used for fuel do you expect to be much lower in the blood? How do the excess or lack of these metabolites influence the function of the organs that deal with these metabolites?

Which of the following does not play a role in "charging" the tRNA molecules? aminoacyl tRNA...

Which of the following does not play a role in "charging" the tRNA molecules? aminoacyl tRNA synthetase rRNA ATP amino acids What term refers to the process of making RNA from a DNA template? transduction transformation transcription translation replication What term refers to the process of making protein from an RNA template? transduction transformation transcription translation replication

A tRNA molecule has the anticodon sequence 3' GUU 5'. What amino acid will it be carrying?

A tRNA molecule has the anticodon sequence 3' GUU 5'. What amino acid will it be carrying?a.Asnb.Leuc.Glnd.ValWhen the ribosome reaches a stop codon on the mRNA, no corresponding tRNA enters the A site. If the translation reaction were to be experimentally stopped at this point, before the binding of release factors, which of the following would you be able to isolate?separated ribosomal subunits, a polypeptide and free tRNAan assembled ribosome with a separated polypeptideseparated ribosomal subunits with a polypeptide attached...

Oh No! One of the tRNA genes in E.coli was mutated so that the wrong amino...

Oh No! One of the tRNA genes in E.coli was mutated so that the wrong amino acid was charged onto it. Now, the amino acid that should be on the tRNA containing the anticodon 5'-CCA-3' is replaced with an Asp. DNA SEQUENCE: 5'-ATG TAG TTA TCC AAC CCT CCA AAA CAT GCA CCT CCT TAC TCA AGC AGG CAT ACG-3' a. Write out the protein sequence (using the DNA sequence from the problem above) that would be made in this...

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