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225. Describe what serine proteases are, what they do, what their active sites are like including...
1) (10 pts) Serine proteases are enzymes that cleave peptide bonds in proteins. Explain using words...
1) (10 pts) Serine proteases are enzymes that cleave peptide bonds in proteins. Explain using words (drawings OR both) why serine proteases cleave either before or after different amino acid residues. Talk about at least two of the following proteases: Chymotrypsin, Trypsin, or Elastase. mod 2) (10pts) Below is a hypothetical peptide sequence. Give the peptide fragments that will occur by enzymatic degradation using Trypsin and Chymotrypsin DARSKWKSENLIRTY 3) (10 pts) All superfamilies of serine proteases use the catalytic triad...
Trypsin, chymotrypsin, and elastase are all serine proteases that cleave after different amino acids. What is...
Trypsin, chymotrypsin, and elastase are all serine proteases that cleave after different amino acids. What is responsible for the substrate specificity? Choose one: A. Different amino acids involved in the catalytic triad OB. Each protease is made in a different cell type. C. The substrate binding pockets accommodate different amino acids. D. Different catalytic mechanisms
1.. Example questions to guide you through the mechanism study of Serine proteases Describe substrate binding,...
1.. Example questions to guide you through the mechanism study of Serine proteases Describe substrate binding, including the role and chemical nature of the "specificity pocket" in chymotrypsin, and which peptide bond in the substrate (relative to the specificity group) will be cleaved. Draw the structure of the catalytic triad at the beginning of the reaction, and explain how the states of ionization and hydrogen bonding pattern of those 3 groups change step by step during catalysis. Explain the role...
Cysteine proteases are catalytically homologous to serine proteases, where the active site serine is replaced with...
Cysteine proteases are catalytically homologous to serine proteases, where the active site serine is replaced with a cysteine. What would be the appropriate order of the mechanism? Just write the numbers in order. Peptide bond is cleaved and C becomes sp2 The acyl-enzyme is formed by the transfer of the proton from the positively charged histidine residue, acting as a general acid, to the amino group of the substrate. The side-chain of the amino acid residue immediately before the scissile...
24. Explain the energetic benefits of making the enzyme active state rather than to the substrate...
24. Explain the energetic benefits of making the enzyme active state rather than to the substrate conformation. Also explain how contribute to enzyme action. In other words, how do these weak intera enzyme and the transition state lower the activation energy?) of making the enzyme active site complementary to the transition nation. Also explain how multiple weak interactions words, how do these weak interactions between the 25. 1/F. The pk's of titratable groups of amino acids remain constant irrespective of...
1) (10 pts) Serine proteases are enzymes that cleave peptide bonds in proteins. Explain using words (drawings OR both) why serine proteases cleave either before or after different amino acid residues. Talk about at least two of the following proteases: Chymotrypsin, Trypsin, or Elastase. mod 2) (10pts) Below is a hypothetical peptide sequence. Give the peptide fragments that will occur by enzymatic degradation using Trypsin and Chymotrypsin DARSKWKSENLIRTY 3) (10 pts) All superfamilies of serine proteases use the catalytic triad...
Trypsin, chymotrypsin, and elastase are all serine proteases that cleave after different amino acids. What is responsible for the substrate specificity? Choose one: A. Different amino acids involved in the catalytic triad OB. Each protease is made in a different cell type. C. The substrate binding pockets accommodate different amino acids. D. Different catalytic mechanisms
24. Explain the energetic benefits of making the enzyme active state rather than to the substrate conformation. Also explain how contribute to enzyme action. In other words, how do these weak intera enzyme and the transition state lower the activation energy?) of making the enzyme active site complementary to the transition nation. Also explain how multiple weak interactions words, how do these weak interactions between the 25. 1/F. The pk's of titratable groups of amino acids remain constant irrespective of...
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