What products are formed when each peptide is treated with trypsin? Be sure to answer all parts.
[1] Cys-Met-Met-Lys-Glu-His
[2] Tyr-Pro-Asp-Arg-Trp-Asp
3] Ile-Ile-Gln-Tyr-Arg-Ala-Gln-Phe-Phe-Tyr-Asn-Met
What products are formed when each peptide is treated with trypsin? Be sure to answer all...
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...
How many amino acids are there in the disease causing variant of
the Amyloid-beta (Ab) peptide?
Determine which of these four peptides is most likely to become a beta sheet. Lys-Thr-Val-Ile-Trp-Pro-Phe-Tyr-Ile-Gln-Ile-Gly Arg-Ser-Tyr-Glu-Gly-Leu-Lys-Arg-Ile-Ala-Glu-Ser Ala-Glu-Met-Leu-Gln-Lys-Arg-Gly-Cys-Gly-Asp-Glu Met-Leu-Lys-Ala-Ser-Ala-Leu-Glu-Lys-Leu-Ser-Glu
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...
please explain each question thoroughly. thanks
Question 3: Arg-Cys-Met-Ala-Cys-Gly-Arg-Pro-Asn-Tyr-Leu-Trp-Ala-Ile-His-Phe-Ser-Cys-Lys a. What would happen if this peptide were to be incubated with dinitrofluorobenzene (FDNB) followed by 6M HCl hydrolysis at 1100C for 24 hrs. What labeled product(s) would be detected? Consider the following pepide: What would happen if the peptide were treated with CNBr? What would the products be? Why? b. What would happen if the peptide were treated with chymotrypsin? What would the c. products be? Why? Arg-Cys-Met-Ala-Cys-Gly-Arg-Pro-Asn-Tyr, Leu-Trp, Ala-Ile-His-Phe,...
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...
Based on where CNBR and trypsin cut, evaluate the following experimental data and predict the N- and C-terminal amino acids of the parent peptide (peptide before cutting). Enter your answer using the three letter amino acid abbreviations, with a comma in between. For example, if the N-terminal residue is alanine and C-terminal residue is glycine you would write: Ala, Gly. Cleavage with CNBR produced the following peptides: Gly-Ala-Lys-Leu-Pro-Met Phe-Trp-Met Asp-Gly-Arg-Cys-Ala-Gln Cleavage with trypsin: Cys-Ala-Gln Phe-Trp-Met-Gly-Ala-Lys Leu-Pro-Met-Asp-Gly-Arg
. Insulin (below) is treated with dansyl chloride followed by its complete acidic hydrolysis. Which of the following dansylated amino acids you expect to observe? A chain Gly-Ile-Val-Glu-Gln-Cys-Cys- Ala-Ser-Val - Cys-Ser-Leu- Tyr-Gln-Leu-Glu-Asn - Tyr-Cys- Asn 10 15 21 B chain Phe-Val - Asn-Gln-His-Leu-Cys-Gly-Ser-His-Leu-Val-Glu - Ala-Leu-Tyr-Leu-Val-Cys-Gly-Glu-Arg-Gly-Phe-Phe-Tyr-Thr-Pro-Lys - Ala 10 20 25 30 15
5. Consider the following peptide: His-Ser-Gln-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Ser-Arg-Arg-Ala-Gin- Asp-Phe-Val-Gln-Trp-Leu-Met-Asn-Thr a. What are the fragments, if it is cleaved by trypsin? b. What are the fragments, if it is cleaved by chymotrypsin? c. What are the fragments, if it is cleaved by pepsin?
Which of these protein sequences is most likely to span a cell
membrane?
Gly-Asp-Val-Ala-Gly-Arg-Gly-Asn-Gly-Lys-Lys-Pro-Ser-Ser-Val-Arg-Ala-Leu-Ser Ile-Val-Leu-Pro-Ile-Val-Leu-Leu-Val-Phe-Leu-Cys-Leu-Gly-Val-Phe-Leu-Leu-Trp Lys-Asn-Trp-Arg-Leu-Lys-Asn-Ile-Asn-ser-Ile-Asn-Phe-Asp-Asn-Pro-Val-Tyr-Gln A. 773 B. 792 C. 811
The next DNA sequence is the MATRICE strand of a small gene. What is the complete amino acid sequence of the encoded peptide? GTCATGGCAACATAG 5'-3 Standard Genetic Code First position (5'end) U Second position UAU Tyr UAC Tyr UCA Ser UAA StopUGA Stop UAG Stop UUU Phe UUC Phe UUA Leu UUG Leu UGU Cys UGC Cys UCU Ser UCC Ser UCG Ser UGG Trp CUU Leu CUC Leu CUA Leu CUG Leu CCU Pro CCC Pro CCA Pr CCG...