Identify the parts of the G protein shown in the image. GB C Ga O GDP Answer Bank B subunit y subunit fatty acid Which of the subunits, when activated, associates with adenylyl cyclase (adenylate cyclase) and enables it to assume a more catalytically active conformation? о Gpy Gy a subunit
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- Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms can be used once, more than once, or not at all. Submit dCTP GMP AMP GTP dTTP activation inhibition dGTP My Answers Give Up UTP + Gln + ATP → CTP + Glu+ ADP + P₁. Cofactor: dCMP + H₂O →→→→DUMP + NH3. Cofactor: CDP+ [2H] → dCDP+ H₂O. Cofactor: Effect: Effect: Effect: Reset HelpHere is a putative peptide sequence (position number on top of residues): 1 2 3 4 5 6 7 8 9 10 11 12 13 NH2- G C G N V T H N Q C V L S -COOH If expressed in a eukaryotic cell (please mark your answer in the blank space): Position(s) ___ could be N-glycosylated Position(s) ___ could be modified with myristic acid and the bond formed would be a ______________ Position(s) ______and _____ could be modified with palmiti c acid and the bond formed would be a ______________ Positio n(s) ________ could be a segment of a lipid-linked protein with a farnesyl anchor and the bond formed would be a ______________ Position(s) ________ could be a segment of an O-glycosylated protein Position(s) ________ could be modified with a glycosylphosphatidylinositol (GPI) anchor Position(s) ________ could be phosphorylatedMy PDB code: 3GRS residue point: HIS467 mutation: LEU Describe why this position in your protein is important and outline the effects the mutation will have on the 3D structure and the function of your protein. (up to 50 words)
- Using the catalytic mechanism of serine proteases, draw and label a reaction coordinate diagram/graph of the chymotrypsin-catalyzed hydrolysis of a peptide bond.ILLUSTRATIONS For each of the given proteins: Draw the final location of the following proteins after being translocated. Label the organelle (as well as the organelle parts/compartments) and the cytosol (if necessary) in order to clearly depict the protein's location and orientation. Label the amino and carboxyl ends of the protein. Below your drawing, indicate: . . a. the receptor/s b. the energy source c. if there is signal peptide cleavage or none E. Mitochondrion H₂N-MTS ITS* "Internal targeting sequence that has no cleavage site -COOH SALEStarting from the situation below, explain the next immediate steps that occur after the agonist ligand binds to the GPCR. Describe what happens in terms of the GTP and the heterotrimeric G protein structure. www www Ligand α В GTP ZAN Y Copyright ©2009 Pearson Education, Inc. GDP
- In the protein adenylate kinase, the C-terminal region has the sequence Val-Asp-Asp-Val-Phe-Ser-Gln-Val-Cys-Thr-His- Leu-Asp-Thr-Leu-Lys- The hydrophobic residues in this sequence are presented in boldface type. Suggest a possible reason for the periodicity in their spacing.Exploring the Structure of the 30S Ribosomal Subunit Go to www.pdh.org and bring up PDB file 1GIX, which shows the 30S ribosomal subunit, the three tRNAs, and mRNA. In the box on the right titled ‘Biological Assembly.� click “More Images.� and then scroll down to look at the Interactive Vic By moving your cursor over the image, you can rotate it to view it from any perspective. a. How are the ribosomal proteins represented in the image? b. How is the 16S rRNA portrayed? c. Rotate the image to see how the tRNAs stick out from the structure. Which end of the tRNA is sticking out? d. Where will these ends of the tRNAs lie when the 50S subunit binds to this complex?Translate the first 10 amino acids into RNA code Explain where this process occurs in the cell Transcribe this RNA code into DNA Explain where this process would occur in the cell My protein is human insulin which the sequence of amino acids are: malwmrllpl lallalwgpd paaafvnqhl cgshlvealy Ivcgergffy tpktrreaed lqvgqvelgg gpgagslqpl alegslqkrg iveqcctsic slyqlenycn
- What is the smallest number of molecules of ATP and GTP consumed in the synthesis of a protein with 200 residues after mRNA synthesis, starting from amino acids? Assume that the hydrolysis of PP; is equivalent to the hydrolysis of ATP for this calculation. number of ATP molecules: number of GTP molecules: 400 800 Incorrect. In the protein adenylate kinase, the C-terminal region is a-helical, with the sequence Val-Asp-Asp-Val-Phe-Ser-Gin-Val-Cys-Thr-His-Leu-Asp- Thr-Leu-Lys- The hydrophobic residues in this sequence are presented in boldface type. Suggest a possible reason for the periodicity in their spacing.The enzymes GICNAC phosphotrasnferase is a key enzyme involved in the transporting of proteins from the trans-Golgi to the lysozyme. In addition to the catalytic function of the enzyme that involves certain sugars, what is the second critical function of this enzyme? O It recognizes internal signal sequences found on lysozyme-targeted proteins. O It drives the binding of a phosphorylated GlcNac group onto a mannose residue. O It facilitates the reversible binding of specific proteins to the M6P receptor O In is essential for the recruitment of clathrin triskelions to the budding vesicle.
