Homework Answers
Ans 1: antiparallel beta sheet.
Antiparallel beta sheet consist of polypeptide chain running in opposite directions, i.e. one is N terminal to C terminal and the other polypeptide is C terminal to N.
Ans 5: x-ray crystallography.
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Question 1 (Mandatory) (1 point) The following is an example of_ H-N a parallel alpha-helix a...
explain the hydrogen bonding pattern for B sheet ( parallel and antiparallel, alpha helix and B...
explain the hydrogen bonding pattern for B sheet ( parallel and antiparallel, alpha helix and B turn in terms of (I+N).
The secondary structure shown below is an example of an) N N A beta turn B....
The secondary structure shown below is an example of an) N N A beta turn B. parallel beta sheet C antiparallel beta sheet D. right handed alpha helix Which amino acid would be most stabilizing at the N-terminus of an a-hellx (pH=7.0)? A Lysine B. Asparagine C Glutamine D. Glutamate
Sort each peptide chain as part of a parallel fi sheet, part of an antiparallel beta...
Sort each peptide chain as part of a parallel fi sheet, part of an antiparallel beta sheet, either (cannot determine if parallel or antiparallel), or not part of a fi sheet (for example, if it is part of an alpha helix). Be as specific as possible. For example, if a given structure is a parallel fi sheet, identify it as such.
11. In an idealized collagen triple helix, the dihedral angle o = _ closely correspond to...
11. In an idealized collagen triple helix, the dihedral angle o = _ closely correspond to in the following possible torsion angles, while y = __ closely correspond to ___ (Hints: check your powerpoint slide as a guide; For angle less than 180°, clockwise-positive, counterclockwise negative) А в с DEF OP Y 6. Which is the more stable beta-sheet: parallel or antiparallel? A. Parallel, due to alignment of all terminal amino-groups on one side and all carboxyl-groups on the other...
1. Which of these is not found in myoglobin? A) alpha helix b) beta sheet c)...
1. Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
ter 9. Hemoglobin and Myoglobin Which of these is not found in myoglobin? A) alpha helix...
ter 9. Hemoglobin and Myoglobin Which of these is not found in myoglobin? A) alpha helix b) beta sheetc) heme group, d) globular folding pattern • Which statement about hemoglobin is not true? A) it is globular b) it contains helix loop-helix c) it has three subunits d) it has heme groups · The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these - The...
Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme...
Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group 1. d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with b...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
vols " statement about hemoglobin is not true? A) it is globular b) it contains helix-...
vols " statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin from its T-form to its R-form results in: a) Loss of BPG b) Does not result in release of CO2 c) cooperative...
QUESTION 1 points Save Answer A single pass transmembrane protein that is an alpha helix can...
QUESTION 1 points Save Answer A single pass transmembrane protein that is an alpha helix can make a channel. O True QUESTION 2 1 points Save Answer Active transport uses ATP to move components in parallel with their concentration gradient, that is: from a high concentration to a low concentration True
The secondary structure shown below is an example of an) N N A beta turn B. parallel beta sheet C antiparallel beta sheet D. right handed alpha helix Which amino acid would be most stabilizing at the N-terminus of an a-hellx (pH=7.0)? A Lysine B. Asparagine C Glutamine D. Glutamate
Sort each peptide chain as part of a parallel fi sheet, part of an antiparallel beta sheet, either (cannot determine if parallel or antiparallel), or not part of a fi sheet (for example, if it is part of an alpha helix). Be as specific as possible. For example, if a given structure is a parallel fi sheet, identify it as such.
11. In an idealized collagen triple helix, the dihedral angle o = _ closely correspond to in the following possible torsion angles, while y = __ closely correspond to ___ (Hints: check your powerpoint slide as a guide; For angle less than 180°, clockwise-positive, counterclockwise negative) А в с DEF OP Y 6. Which is the more stable beta-sheet: parallel or antiparallel? A. Parallel, due to alignment of all terminal amino-groups on one side and all carboxyl-groups on the other...
1. Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
ter 9. Hemoglobin and Myoglobin Which of these is not found in myoglobin? A) alpha helix b) beta sheetc) heme group, d) globular folding pattern • Which statement about hemoglobin is not true? A) it is globular b) it contains helix loop-helix c) it has three subunits d) it has heme groups · The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these - The...
Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group 1. d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
vols " statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin from its T-form to its R-form results in: a) Loss of BPG b) Does not result in release of CO2 c) cooperative...
QUESTION 1 points Save Answer A single pass transmembrane protein that is an alpha helix can make a channel. O True QUESTION 2 1 points Save Answer Active transport uses ATP to move components in parallel with their concentration gradient, that is: from a high concentration to a low concentration True
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