Please help with these quickly. Ubiquitylation and phosphorylation are common post-translationalmodifications. Which of the following is common between bothpathways?They are both reversible modificationsO They are both added to the protein by the same enzymeO They both use one phosphate from ATP for energyThey are both reversible modifications and can be mimicked bysubstituting amino acidsO They can both be mimicked by substituting amino acids

In a metabolic process, phosphorylation is the phenomenon in which one phosphorus is attached on a…

Ubiquitylation and phosphorylation are common post-translational modifications. Which of the following is common between both pathways? O They are both reversible modifications They are both added to the protein by the same enzyme O They both use one phosphate from ATP for energy O They are both reversible modifications and can be mimicked by substituting amino acids They can both be mimicked by substituting amino acids

Ubiquitylation and phosphorylation are common post-translational modifications. Which of the following is common between both pathways? O They are both reversible modifications They are both added to the protein by the same enzyme O They both use one phosphate from ATP for energy O They are both reversible modifications and can be mimicked by substituting amino acids They can both be mimicked by substituting amino acids

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 18QP: The following is a portion of a protein: met-trp-tyr-arg-gly-pro-thr-Various mutant forms of this...

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Which of the following statements about the post-translation modification of proteins by phosphorylation are true? Check all that apply it is usually reversible it is an important mechanism for regulating enzyme activity it changes a hydroxyl group to a phosphate group it is a modification of the R groups of proline (P), isoleucine (I) and glycine (G) 18 2 # 3 $ 4 % 5 MacBook Pro 6 v Ro 8 9 0
ADP ribosylation is one example of post-translational modification of an enzyme. Which statements about the process is true? ADP ribosylation will affect protein folding because of the addition of a large molecule ADP ribose can be added to the amine group of lysine or glutamine The ending of DNA around histones in the nucleus is altered by the ADP -ribosylation of the histone proteins in cancer cells ADP ribosylation requires ADP and the target protein as the substrates in the ADP ribosylation ADP ribosylation of phosphoinositol is an important step in signaling through a G protein-coupled receptor pathway.
Which of the following cannot be said regarding aminoacyl tRNA synthetase? It is essential for the correct reading of codons. A single tRNA synthetase can attach different amino acids to their corresponding tRNA. It is first activated when it catalyzes a reaction between ATP and an amino acid to form an aminoacyladenylic acid (amino acyl-AMP). It is responsible for the attachment of the correct amino acid to the correct tRNA. There is a different tRNA synthetase for each amino acid that will be attached to a tRNA.
Many blood clotting proteins undergo a post-translational modification in which specific glutamic acid residues (Glu) in the protein are converted to gamma-carboxyglutamic acid residues (Gla). See reaction scheme below. An example is the blood clotting protein Factor IX, which has 12 Glu in its N-terminus converted to Gla. This modification gives Factor IX the ability to bind calcium and phospholipid membranes. Bacteria do not have the enzyme required to convert Glu to Gla and therefore Factor IX proteins expressed in bacteria would not have the proper modifications. How might you engineer the translational apparatus of a bacterial cell line so that it produces Factor IX with Gla in the appropriate positions. How would you ensure that only the 12 Glu in Factor IX that are normally converted to Gla and not just all Glu (Limit 5-6 senetnces)?
The following is a portion of a protein: met-trp-tyr-arg-gly-pro-thr-Various mutant forms of this protein have been recovered. Using the normal and mutant sequences, determine the DNA and mRNA sequences that code for this portion of the protein, and explain each of the mutations. a. met-trp- b. met-cys-ile-val-val-leu-gln- c. met-trp-tyr-arg-ser-pro-thr- d. met-trp-tyr-arg-gly-ala-val-ile-ser-pro-thr-
what is post-translational protein covalent modification? give three examples and name the enzyme that catalyzes each reaction.
During translation, this mutation results in a change from the amino acid aspartic acid to the amino acid alanine. Which of the following determines how the resulting protein will be affected by this mutation? O Any change in amino acid will determine that the polypeptide chain will not be able to fold into its proper structure. The change in amino acid will determine that a nonsense mutation has occurred and not all amino acids will be added to the polypeptide chain. O The properties of the amino acids will determine whether the interactions within the protein will affect the folding of the polypeptide chain. The substitution of the DNA nucleotide will determine whether there is a change in the folding of the polypeptide chain forming the protein.
Which of these is a post-translational modification that targets a protein to the proteasome? O Ubiquitination O SUMOylation O Phosphorylation O Glycosylation O Methylation
Which of the following sequences represents a recognition site for N-linked glycosylation where X is any amino acid residue? Gln-X-Ser O His-X-Ser O Arg-X-Ser O Asn-X-Ser O Asp-X-Ser
The synthesis of a protein requires that the amino acids that constitute the growing polypeptide chain be covalently linked to the amino acid attached to the tRNA at the aminoacyl site of the ribosome. Which of the following catalyses this reaction? Options: the aminoacyl tRNA synthetase eEF2 eEF1-GTP a large ribosomal RNA the initiator tRNA met
Which of the following is true about amino acyl tRNA synthetase? O It binds both an ATP molecule and an amino acid within its active site. Each amino acyl tRNA synthetase is specific for a given a amino acid. O It links AMP to the COOH end of an amino acid. It links an amino acid to the 3' end of the correct tRNA molecule. O All of the above are true.
a. Describe the different stages that occur during the translationprocess of Protein Synthesis.(b) using four examples of antibiotic inhibitors of translation, outlinehow inhibition occurs.