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List and draw the structure(s) the amino acid(s) in...
Need help with #2 Clearly provide the 3-letter symbol for the correct sequence of cach amino...
Need help with #2
Clearly provide the 3-letter symbol for the correct sequence of cach amino acid in each of listings of the amino acids in the peptide or in any fragments are simply listed in alphabetical order. A subscriptive the number of that amino acid. Use parentheses to incorporate the unknown amino acids after each treatment 1. A five amino acid peptide contains: Arg. Glu, His, Phe, and Ser This peptide yields the following results when broken down into...
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...
6. The sequence of kassinin, a tachykinin dodecapeptide from the African frog Kassina senegalensis, was determined....
6. The sequence of kassinin, a tachykinin dodecapeptide from the African frog Kassina senegalensis, was determined. A single round of Edman degradation identifies Asp as the N-terminus. A second sample of the peptide is treated with chymotrypsin. Two fragments are released with the following amino acid compositions: fragment I (Gly, Leu, Met, Val) and fragment II (Asp2, Gln, Lys, Phe, Pro, Ser, Val). Next, a third sample of peptide is treated with trypsin, which results in two fragments with the...
7. A peptide was isolated from sheep hypothalamus and subjected to sequence analysis. The experimental data...
7. A peptide was isolated from sheep hypothalamus and subjected to sequence analysis. The experimental data are as follows. Deduce the amino acid sequence from this data. a. Composition (2Ala, 2Gly, Thr, Phe, Lys, His, Ser, Trp, Arg, Val) b. Reaction of dinitrofluorobenzene with the intact peptide yielded DNP-Thr. A brief treatment with carboxypeptidase a yielded glycine. c. Trypsin digestion yielded three fragments: i. Phe, Thr, Ala, Lys ii. Gly, Val iii. Trp, His, Ser, Gly, Arg, Ala Treatment of...
please help!!! 19. A peptide is composed of the following amino acids: Ala, Arg. Glu, Gly,...
please help!!!
19. A peptide is composed of the following amino acids: Ala, Arg. Glu, Gly, Lys, Met, Phe, Ser, Tyn Given the following data deduce the sequence of the peptide. Trypsin digestion yielded two fragments with the following composition: Fragment 1: Ala, Arg, Glu, Met, Phe, Ser Fragment 2: Gly, Lys, Tyr Chymotrypsin digestion yielded three fragments with the listed compositions: Fragment 1: Ala, Gly, Lys, Phe Fragment 3: Arg, Glu, Met, Ser Cyanogen Bromide cleavage yielded two fragments...
Explain this question please! Name (4 ofer to the Table of Amino Acids at the beginning of the exam to help solve this problem. Polypeptide I is a 12-mer and has the following amino acid compositi...
Explain this question please!
Name (4 ofer to the Table of Amino Acids at the beginning of the exam to help solve this problem. Polypeptide I is a 12-mer and has the following amino acid composition: Ala, Arg, 2 His, Leu, 2 Lys, 2 Phe, Ser, Thr, Trp Edman degradation of I shows that its N-terminal amino acid is His. Chymotrypsin cleavage of I yields peptide fragments A-D.Trypsin cleavage of I gives peptide fragments E-G. Shown below is the amino...
please explain how to solve this problem, the answer is provided 9. Peptides: (20 pts.). A...
please explain how to solve this problem, the answer
is provided
9. Peptides: (20 pts.). A polypeptide (X) gives 7 fragments when treated with chymotrypsin (A-G). The same peptide also gives 9 fragments when treated with trypsin (I- IX). After Chymotrypsin A) Thr-Thr-Tyr-Ala-Gly-Phe-Phe-Ile-Asp- Lys B) Ala-Cys-Pro-Leu-Tyr-Gin-lle-Arg C) Met-Ser-Thr-Tyr-Pro-Gly-Arg D) Cys-Leu-Val-Phe-Ile-Lys E) Leu-Ala-Trp-Gly-Val F) Ser-Phe-Ala-Pro-Lys G) Met-Asp-Lys Afier Trypsin I) Ala-Pro-Lys-Met-Asp-Lys-Thr-Thr-Tyr II) Pro-Gly-Arg-Cys-Leu-Val-Phe III) Ile-Lys-Ala-Cys-Pro-Leu-Tyr IV) Ile-Asp-Lys-Met-Ser-Thr-Tyr V) Gin-Ile-Arg-Leu-Ala-Trp VIAla-Gly-Phe VII) Gly-Val VIII) Ser-Phe LX) Phe A) What is the primary...
Click on the amide bonds in the following peptide that are cleaved selectively under trypsin catalysis...
Click on the amide bonds in the following peptide that are cleaved selectively under trypsin catalysis Gly-Leu-Phe-Asp-Arg-Gly-Glu-Tyr-Ser-Lys-Trp-Val-Tyr
anyone can help me with it? A protein biochemist attempted to determine the amino acid sequence...
anyone can help me with it?
A protein biochemist attempted to determine the amino acid sequence of a decapeptide. Use the results from the trypsin, chymotrypsin, and cyanogen bromide treatments to suggest the amino acid sequence of this decapeptide. Trypsin digestion gave two fragments with multiple residues (not in order): • T1: Ala, Arg, Phe, Gly, Thr, Trp, Tyr • T2: Lys, Met, Val Chymotrypsin digestion gave four fragments with multiple residues (not in order): • CT1: Ala, Phe •...
A small generic section of the primary structure of an α helix is given by −amino...
A small generic section of the primary structure of an α helix is given by −amino acid1−amino acid2−amino acid3−amino acid4−amino acid5−amino acid6−amino acid7− Which amino acid residue's backbone forms a hydrogen bond with the backbone of the third (3rd) residue? Which peptide segment is most likely to be part of a stable α helix at physiological pH ? −Glu−Leu−Ala−Lys−Phe− −Gly−Arg−Lys−His−Gly− −Gly−Gly−Gly−Ala−Gly− −Pro−Leu−Thr−Pro−Trp− −Lys−Lys−Ala−Arg−Ser− −Glu−Glu−Glu−Glu−Glu− −Tyr−Trp−Phe−Val−Ile−
Need help with #2
Clearly provide the 3-letter symbol for the correct sequence of cach amino acid in each of listings of the amino acids in the peptide or in any fragments are simply listed in alphabetical order. A subscriptive the number of that amino acid. Use parentheses to incorporate the unknown amino acids after each treatment 1. A five amino acid peptide contains: Arg. Glu, His, Phe, and Ser This peptide yields the following results when broken down into...
7. A peptide was isolated from sheep hypothalamus and subjected to sequence analysis. The experimental data are as follows. Deduce the amino acid sequence from this data. a. Composition (2Ala, 2Gly, Thr, Phe, Lys, His, Ser, Trp, Arg, Val) b. Reaction of dinitrofluorobenzene with the intact peptide yielded DNP-Thr. A brief treatment with carboxypeptidase a yielded glycine. c. Trypsin digestion yielded three fragments: i. Phe, Thr, Ala, Lys ii. Gly, Val iii. Trp, His, Ser, Gly, Arg, Ala Treatment of...
please help!!!
19. A peptide is composed of the following amino acids: Ala, Arg. Glu, Gly, Lys, Met, Phe, Ser, Tyn Given the following data deduce the sequence of the peptide. Trypsin digestion yielded two fragments with the following composition: Fragment 1: Ala, Arg, Glu, Met, Phe, Ser Fragment 2: Gly, Lys, Tyr Chymotrypsin digestion yielded three fragments with the listed compositions: Fragment 1: Ala, Gly, Lys, Phe Fragment 3: Arg, Glu, Met, Ser Cyanogen Bromide cleavage yielded two fragments...
Explain this question please!
Name (4 ofer to the Table of Amino Acids at the beginning of the exam to help solve this problem. Polypeptide I is a 12-mer and has the following amino acid composition: Ala, Arg, 2 His, Leu, 2 Lys, 2 Phe, Ser, Thr, Trp Edman degradation of I shows that its N-terminal amino acid is His. Chymotrypsin cleavage of I yields peptide fragments A-D.Trypsin cleavage of I gives peptide fragments E-G. Shown below is the amino...
please explain how to solve this problem, the answer
is provided
9. Peptides: (20 pts.). A polypeptide (X) gives 7 fragments when treated with chymotrypsin (A-G). The same peptide also gives 9 fragments when treated with trypsin (I- IX). After Chymotrypsin A) Thr-Thr-Tyr-Ala-Gly-Phe-Phe-Ile-Asp- Lys B) Ala-Cys-Pro-Leu-Tyr-Gin-lle-Arg C) Met-Ser-Thr-Tyr-Pro-Gly-Arg D) Cys-Leu-Val-Phe-Ile-Lys E) Leu-Ala-Trp-Gly-Val F) Ser-Phe-Ala-Pro-Lys G) Met-Asp-Lys Afier Trypsin I) Ala-Pro-Lys-Met-Asp-Lys-Thr-Thr-Tyr II) Pro-Gly-Arg-Cys-Leu-Val-Phe III) Ile-Lys-Ala-Cys-Pro-Leu-Tyr IV) Ile-Asp-Lys-Met-Ser-Thr-Tyr V) Gin-Ile-Arg-Leu-Ala-Trp VIAla-Gly-Phe VII) Gly-Val VIII) Ser-Phe LX) Phe A) What is the primary...
Click on the amide bonds in the following peptide that are cleaved selectively under trypsin catalysis Gly-Leu-Phe-Asp-Arg-Gly-Glu-Tyr-Ser-Lys-Trp-Val-Tyr
anyone can help me with it?
A protein biochemist attempted to determine the amino acid sequence of a decapeptide. Use the results from the trypsin, chymotrypsin, and cyanogen bromide treatments to suggest the amino acid sequence of this decapeptide. Trypsin digestion gave two fragments with multiple residues (not in order): • T1: Ala, Arg, Phe, Gly, Thr, Trp, Tyr • T2: Lys, Met, Val Chymotrypsin digestion gave four fragments with multiple residues (not in order): • CT1: Ala, Phe •...
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