Homework Answers
|
backbone-backbone hydrogen bond |
backbone-sidechain hydrogen bond |
sidechain-sidechain hydrogen bond |
|
|
single beta strands |
close pair hydrogen bond | close pair hydrogen bond | wide pair hydrogen bond |
| beta-sheets | close pair hydrogen bond | wide pair hydrogen bond | wide-pair hydrogen bond |
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26. A beta strand is a stretch of residues in the extended conformation that can participate...
26. A beta strand is a stretch of residues in the extended conformation that can participate in a beta sheet. (In the f...
26. A beta strand is a stretch of residues in the extended conformation that can participate in a beta sheet. (In the figure at right, beta strands A and B participate in a two-strand sheet.) What sorts of hydrogen bonds are required for the formation of single beta strands and for the formation of beta sheets? backbone- backbone backbone sidechain sidechain- sidechain single beta strands beta sheets
26. A beta strand is a stretch of residues in the extended conformation...
25. Consider two peptide sequences: LKAENDEAARAMSEA and CRAGGFPWDQPGTSN. Which of the two is more likely to adopt an al...
25. Consider two peptide sequences: LKAENDEAARAMSEA and CRAGGFPWDQPGTSN. Which of the two is more likely to adopt an alpha-helical structure? Why? 26. A beta strand is a stretch of residues in the extended conformation that can participate in a beta sheet. (In the figure at right, beta strands A and B participate in a two-strand sheet.) What sorts of hydrogen bonds are required for the formation of single beta strands and for the formation of beta sheets? backbone- backbone sidechain...
25. Consider two peptide sequences: LKAENDEAARAMSEA and CRAGGFPWDQPGTSN. Which of the two is more likely to adopt an al...
25. Consider two peptide sequences: LKAENDEAARAMSEA and CRAGGFPWDQPGTSN. Which of the two is more likely to adopt an alpha-helical structure? Why? 26. A beta strand is a stretch of residues in the extended conformation that can participate in a beta sheet. (In the figure at right, beta strands A and B participate in a two-strand sheet.) What sorts of hydrogen bonds are required for the formation of single beta strands and for the formation of beta sheets? backbone- backbone sidechain...
2. Silk contains the repeating sequence (Gly-Ser-Gly-Ala-Gly-Ala)n. This sequence is present in beta strands that interact...
2. Silk contains the repeating sequence
(Gly-Ser-Gly-Ala-Gly-Ala)n. This sequence is present in beta
strands that interact with each other. Considering just a single
strand within a sheet, the Ser and Ala side chains will be
(on both sides of the sheet in a single repeat) (in first repeat,
on one side; in the next repeat on the other side) (the answer
depends on whether the strands are parallel or antiparallel) (on
the same side of the sheet).
4. The figure...
23. Consider these three sequences contained within single beta strands. Which is most likely to have ionic interaction...
23. Consider these three sequences contained within single beta strands. Which is most likely to have ionic interactions between side chains at physiological pH? Explain your choice. Sequence 1: Ala-Glu- Leu- Arg Sequence 2: Ala - Glu - Arg-Leu Sequence 3: Leu - Ala - Glu- Arg 24. The equilibrium between the native state (N) and the unfolded state (U) of a protein can be represented by the chemical equation N U, with a AG value that represents the equilibrium....
Biochemistry! Please read the whole question before answering. And please explain. 1. Read both parts A...
Biochemistry! Please read the whole question before answering.
And please explain.
1. Read both parts A and B of question 1 before you answer either one. Draw a peptide backbone that extends for three amino acids. Label the psi, phi and omega angles, showing the direction of rotation. Indicate resonance. Draw the structure with the more likely cis or trans conformation. Indicate side chains with the letters R1, R2 and R3. A. B. Draw a second peptide below the one...
22. Consider an alpha helix with sequence VLADWMAVELA, and consider the hydrogen bonds that are required in order to fo...
22. Consider an alpha helix with sequence VLADWMAVELA, and consider the hydrogen bonds that are required in order to form the alpha helix. A. Fill in all of the hydrogen bonds that must form between a given residue's backbone N-H backbone C-O, or R group, indicating what the hydrogen bonding partner for each will be. For example, the C-O of V1 is a hydrogen bond acceptor of the W5 N-H hydrogen bond donor, reflected in the appropriate squares under V1...
22. Consider an alpha helix with sequence VLADWMAVELA, and consider the hydrogen bonds that are required in order to fo...
22. Consider an alpha helix with sequence VLADWMAVELA, and consider the hydrogen bonds that are required in order to form the alpha helix. A. Fill in all of the hydrogen bonds that must form between a given residue's backbone N-H backbone C-O, or R group, indicating what the hydrogen bonding partner for each will be. For example, the C-O of V1 is a hydrogen bond acceptor of the W5 N-H hydrogen bond donor, reflected in the appropriate squares under V1...
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysi...
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...
answer all pls 5 Figure K 3 19. Which of the bonds in Figure K above...
answer all pls
5 Figure K 3 19. Which of the bonds in Figure K above are hydrogen bonds? A. 1 only B. 1&2 C. 2 only D. 3 only E. 4 only 20. What macromolecule is shown in Figure K above? A. A protein B. DNA C. A triglyceride D. A carbohydrate E. RNA Figure M CH3 он NH2 21. How many asymmetric carbons does the molecule in Figure M have? A. 3 B. 2 C.4 D.1 E.O 22....
26. A beta strand is a stretch of residues in the extended conformation that can participate in a beta sheet. (In the figure at right, beta strands A and B participate in a two-strand sheet.) What sorts of hydrogen bonds are required for the formation of single beta strands and for the formation of beta sheets? backbone- backbone backbone sidechain sidechain- sidechain single beta strands beta sheets
26. A beta strand is a stretch of residues in the extended conformation...
25. Consider two peptide sequences: LKAENDEAARAMSEA and CRAGGFPWDQPGTSN. Which of the two is more likely to adopt an alpha-helical structure? Why? 26. A beta strand is a stretch of residues in the extended conformation that can participate in a beta sheet. (In the figure at right, beta strands A and B participate in a two-strand sheet.) What sorts of hydrogen bonds are required for the formation of single beta strands and for the formation of beta sheets? backbone- backbone sidechain...
25. Consider two peptide sequences: LKAENDEAARAMSEA and CRAGGFPWDQPGTSN. Which of the two is more likely to adopt an alpha-helical structure? Why? 26. A beta strand is a stretch of residues in the extended conformation that can participate in a beta sheet. (In the figure at right, beta strands A and B participate in a two-strand sheet.) What sorts of hydrogen bonds are required for the formation of single beta strands and for the formation of beta sheets? backbone- backbone sidechain...
2. Silk contains the repeating sequence
(Gly-Ser-Gly-Ala-Gly-Ala)n. This sequence is present in beta
strands that interact with each other. Considering just a single
strand within a sheet, the Ser and Ala side chains will be
(on both sides of the sheet in a single repeat) (in first repeat,
on one side; in the next repeat on the other side) (the answer
depends on whether the strands are parallel or antiparallel) (on
the same side of the sheet).
4. The figure...
23. Consider these three sequences contained within single beta strands. Which is most likely to have ionic interactions between side chains at physiological pH? Explain your choice. Sequence 1: Ala-Glu- Leu- Arg Sequence 2: Ala - Glu - Arg-Leu Sequence 3: Leu - Ala - Glu- Arg 24. The equilibrium between the native state (N) and the unfolded state (U) of a protein can be represented by the chemical equation N U, with a AG value that represents the equilibrium....
Biochemistry! Please read the whole question before answering.
And please explain.
1. Read both parts A and B of question 1 before you answer either one. Draw a peptide backbone that extends for three amino acids. Label the psi, phi and omega angles, showing the direction of rotation. Indicate resonance. Draw the structure with the more likely cis or trans conformation. Indicate side chains with the letters R1, R2 and R3. A. B. Draw a second peptide below the one...
22. Consider an alpha helix with sequence VLADWMAVELA, and consider the hydrogen bonds that are required in order to form the alpha helix. A. Fill in all of the hydrogen bonds that must form between a given residue's backbone N-H backbone C-O, or R group, indicating what the hydrogen bonding partner for each will be. For example, the C-O of V1 is a hydrogen bond acceptor of the W5 N-H hydrogen bond donor, reflected in the appropriate squares under V1...
22. Consider an alpha helix with sequence VLADWMAVELA, and consider the hydrogen bonds that are required in order to form the alpha helix. A. Fill in all of the hydrogen bonds that must form between a given residue's backbone N-H backbone C-O, or R group, indicating what the hydrogen bonding partner for each will be. For example, the C-O of V1 is a hydrogen bond acceptor of the W5 N-H hydrogen bond donor, reflected in the appropriate squares under V1...
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...
answer all pls
5 Figure K 3 19. Which of the bonds in Figure K above are hydrogen bonds? A. 1 only B. 1&2 C. 2 only D. 3 only E. 4 only 20. What macromolecule is shown in Figure K above? A. A protein B. DNA C. A triglyceride D. A carbohydrate E. RNA Figure M CH3 он NH2 21. How many asymmetric carbons does the molecule in Figure M have? A. 3 B. 2 C.4 D.1 E.O 22....
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