The following is a short peptide that is part of the enzyme that breaks apart the...
Homework Answers
Basically protein degradation or peptide bond breakdown by hydrolysis is a favourable reaction which releases energy. But it is a slow reaction which takes hundreds of years to breakdown a peptide bond. Enzymatic breakdown of peptide requires activation energy.
Eg: Trypsin perform enzymatic breakdown of protein, which is a thermodinamically faviourable reaction but it requires significant amount activation energy to perform the reaction.
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The
following is a short peptide that is part of the enzyme that breaks
apart the...
On your internship, you visit the Mass Spectrometry Lab. Mass spectrometry can identify short peptide fragments...
On your internship, you visit the Mass Spectrometry Lab. Mass spectrometry can identify short peptide fragments based on their molecular weights. Your fellow intern Jerry has neglected to label his tubes of amyloid beta peptide 42 after digesting them with some proteases that we learned about in Module 6: pepsin, trypsin, and chymotrypsin. Help him figure out what protease is in each tube. Jerry’s supervisor has the fragments listed in the same order as the original peptide primary sequence, which...
The following is a short mRNA in its entirety: Gm7 CAG GAU GCC CGU AAC CGC...
The following is a short mRNA in its entirety: Gm7 CAG GAU GCC CGU AAC CGC CAC CGC CGA UGU CAU AAG AUA AAA AAA AAA A short little protein is translated from it; what is the most likely AA sequence? A. Gly Cys Pro End Pro Pro Pro Pro Met Ser B. Met Pro Val Thr Ala Thr Ala Asp Val Ile Arg C. Met Ser D. Arg Met Pro Val Thr Ala Thr Ala Asp Val Ile Arg...
Drag each label to the correct definition. pancreatic lipase Acidophilic enzyme that cleaves all peptide bonds...
Drag each label to the correct definition. pancreatic lipase Acidophilic enzyme that cleaves all peptide bonds between tyrosine and phenylalanine dipeptidase HCI An enzyme to break apart the final two amino acids resulting from a former protein Mouth secreted-enzyme that increases in activity upon entering the HCl of the stomach maltase Component that activates pepsinogen aminopeptidase An enzyme to take off one amino acid from the -COOH side of the peptide chain. Brush-border enzyme that targets the release of glucose...
PLEASE HELP OCHEM QUESTION 1. In the following protein, identify the type of bonding or interaction...
PLEASE HELP OCHEM QUESTION
1. In the following protein, identify the type of bonding or interaction that is responsible for holding the two peptide chains together at each amino acid pair, above (A) and below (B). Gly - Ala - Ser - Cys - Val - Asp - Leu - Thr - His - Ile-Tyr-Glu - Phe - Lys - Cys - Met - Asn Val - Leu -Gin-Cys - Pro-Lys - Met - Tyr - Asp -Phe-Asn-Lys - Ile...
Consider the following amino acid sequence, found as part of a larger protein: Pro-Gly-Asp-Val-Gln-Phe-Asp-Ile-Arg-Ala-Asp-Gly What kind...
Consider the following amino acid sequence, found as part of a larger protein: Pro-Gly-Asp-Val-Gln-Phe-Asp-Ile-Arg-Ala-Asp-Gly What kind of structure do you expect this peptide segment be a part of? Where on the protein is this likely to occur?
Use the following figure for Questions 2-3. DNA and DNA template strand I 2. The sequence...
Use the following figure for Questions 2-3. DNA and DNA template strand I 2. The sequence of the mRNA that would result from transcribing the gene pictured would be A. AUGCGAUUA B. AUUAGCGUA C. UACGCUAAU D. UAAUCGCAU E. ATGCGATTA 3. The sequence of the peptide that would result from transcribing and translating the gene pictured would be A. Tyr-Ala-aso B. Ile-Ser-Val. C. no peptide would be made, the first codon means "stop." D. Met-are-Leu. E. Tyr-Ser-Val.
10. The peptide shown has the amino acid sequence: A. Val-Ser-Ile-Glu-Lys B. Lys-Glu-Ile-Ser-Val C. Thr-Asp-Leu-Gln-Arg D....
10. The peptide shown has the amino acid sequence: A. Val-Ser-Ile-Glu-Lys B. Lys-Glu-Ile-Ser-Val C. Thr-Asp-Leu-Gln-Arg D. Val-Asp-Ile-Glu-Arg 11. Which of the following describes the entire three- dimensional structure of a single polypeptide? A. Secondary structure B. Quaternary structure C. Tertiary structure D. Primary structure 12. What is the primary driving force in the formation of protein tertiary structure? A. Energy released when additional ion pairs are formed. B. The exclusion of non-polar substances from aqueous solution. C. The formation of...
Part A - Overview of enzyme structure and enzymatic reactions Enzymes are large globular proteins. Much...
Part A - Overview of enzyme structure and enzymatic reactions Enzymes are large globular proteins. Much of their three dimensional shape is the result of interactions between the R (variable) groups of their amino acids. The active site is the portion of the enzyme that will interact with the substrate the molecule that the enzyme acts upon. The nature and arrangement of amino acids in the active site make each enzyme specific to a substrate and to the reaction it...
1- Hydrogen bonding between the two antiparallel strands of protein fragments described below; also show structural...
1- Hydrogen bonding between the two antiparallel strands of protein fragments described below; also show structural and spatial details ( including the correct stereochemistry for an L-amino acid) of the specific “R” groups corresponding to the amino acids specified: -NH-Gly-Phe-Ser-Ala-CO- & -CO-Tyr-Gly-Arg-Met-NH- 2- Provide a mechanistic explanation detailing how the catalytic triad of serine, histidine and aspartic acid, found in the active site site of the enzyme chymotrypsin, facilitates peptide hydrolysis. Clarify the role played by each of these amino...
C,D, and E i need help with. 17. The following peptide forms part of Human Hemoglobin...
C,D, and E i need help with.
17. The following peptide forms part of Human Hemoglobin subunit gammaa Asp-Leu-Lys-Gly-Thr-Phe-Ala A) Which amino acids are likely to be on the side of peptid acids are likely to be on the side of peptide that faces the interior of the protein? Insert your answer leu, Gto.Pne, Ala B) Which are likely to be facing the aqueous environment? Insert your answer Asp, lys, Thr Draw the structure of the sequence at pH7.4. Using...
Drag each label to the correct definition. pancreatic lipase Acidophilic enzyme that cleaves all peptide bonds between tyrosine and phenylalanine dipeptidase HCI An enzyme to break apart the final two amino acids resulting from a former protein Mouth secreted-enzyme that increases in activity upon entering the HCl of the stomach maltase Component that activates pepsinogen aminopeptidase An enzyme to take off one amino acid from the -COOH side of the peptide chain. Brush-border enzyme that targets the release of glucose...
PLEASE HELP OCHEM QUESTION
1. In the following protein, identify the type of bonding or interaction that is responsible for holding the two peptide chains together at each amino acid pair, above (A) and below (B). Gly - Ala - Ser - Cys - Val - Asp - Leu - Thr - His - Ile-Tyr-Glu - Phe - Lys - Cys - Met - Asn Val - Leu -Gin-Cys - Pro-Lys - Met - Tyr - Asp -Phe-Asn-Lys - Ile...
Use the following figure for Questions 2-3. DNA and DNA template strand I 2. The sequence of the mRNA that would result from transcribing the gene pictured would be A. AUGCGAUUA B. AUUAGCGUA C. UACGCUAAU D. UAAUCGCAU E. ATGCGATTA 3. The sequence of the peptide that would result from transcribing and translating the gene pictured would be A. Tyr-Ala-aso B. Ile-Ser-Val. C. no peptide would be made, the first codon means "stop." D. Met-are-Leu. E. Tyr-Ser-Val.
10. The peptide shown has the amino acid sequence: A. Val-Ser-Ile-Glu-Lys B. Lys-Glu-Ile-Ser-Val C. Thr-Asp-Leu-Gln-Arg D. Val-Asp-Ile-Glu-Arg 11. Which of the following describes the entire three- dimensional structure of a single polypeptide? A. Secondary structure B. Quaternary structure C. Tertiary structure D. Primary structure 12. What is the primary driving force in the formation of protein tertiary structure? A. Energy released when additional ion pairs are formed. B. The exclusion of non-polar substances from aqueous solution. C. The formation of...
Part A - Overview of enzyme structure and enzymatic reactions Enzymes are large globular proteins. Much of their three dimensional shape is the result of interactions between the R (variable) groups of their amino acids. The active site is the portion of the enzyme that will interact with the substrate the molecule that the enzyme acts upon. The nature and arrangement of amino acids in the active site make each enzyme specific to a substrate and to the reaction it...
C,D, and E i need help with.
17. The following peptide forms part of Human Hemoglobin subunit gammaa Asp-Leu-Lys-Gly-Thr-Phe-Ala A) Which amino acids are likely to be on the side of peptid acids are likely to be on the side of peptide that faces the interior of the protein? Insert your answer leu, Gto.Pne, Ala B) Which are likely to be facing the aqueous environment? Insert your answer Asp, lys, Thr Draw the structure of the sequence at pH7.4. Using...
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