3) The following is the amino acid sequence of bradykinin, a peptidereleased by certain organisms in response to wasp stings:Arg – Pro – Pro - Gly – Phe – Ser – Pro – Phe – ArgWhat amino acids or peptides are produced when bradykinin istreated with each of the following reagents?a) with Carboxypeptidase c) with Trypsinb) with Chymotrypsin d) with DNFB

Answered: 3) The following is the amino acid…

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter10: From Proteins To Phenotypes

Section: Chapter Questions

Problem 14QP: If phenylalanine was not an essential amino acid, would diet therapy (the elimination of...

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You have isolated from a rare fungus an octapeptide that prevents baldness and you wish to determine its amino acid sequence. The amino acid composition is K2, D, Y, F, G, S, A. Reaction of the intact peptide with dansyl chloride yields dansyl-A. Cleavage with trypsin yields peptides whose compositions are: (K, A, S) and (G, F, K) plus a dipeptide. Reaction with chymotrypsin releases free D, a tetrapeptide with composition (k, S, F, A) and a tripeptide whose composition following acid hydrolysis is (G, K, Y). The enzymatic digests are each carried out on the whole, undansylated peptide.What is the sequence?
Draw the linear fisher projections of D-ribarnic acid, L-xyluronic acid, D-arabinuronic acid, L-gluconate, D-mannarate, L-idarate and D-galacturonate, and D-lyxonate
Consider the following peptide sequence: Lys-Leu-Ile-Cys-Lys What is the net charge of this sequence at physiological pH? a. -2 b. +1 c. 0 d. -1 e. +2
In a paragraph form, provide the experimental procedures in removal of the carbon dioxide present in the mechanism of reaction of protein that contain native serine residues by the reaction of oxazetidine-containing peptides and α-ketoacid
Which Ami no acids can be found in the following peptide?
A peptide composed of 40 amino acids (aa) was isolated from the venom of the Gila Monster(Heloderma suspectum, then submitted to various biochemical and chemical treatments.1) After a treatment with a highly specific chymotrypsin, four peptides were generated:- peptide A (6 aa)- peptide B (16 aa)- peptide C (3 aa)- , and peptide D (15 aa)2) Treatment with carboxypeptidases A or B resulted in the release of:- phenylalanine for peptides A and B- tryptophan for peptide C- glycine for peptide D and the 40 amino acids venom peptide3) One cycle of Edman degradation either for peptide A or for the 40 amino acidspeptide gave the exact PTH derivative indicated below: 4) The 40 amino acids peptide treated with Asp-N endopeptidase followed by massspectrometry MS/MS revealed the following composition:- two molecules of glutamic acid,- various peptides indicated below sorted by masses:HG,DLSKQM,EGTFTS,EAVRLFI,EWLKNGGPSSGAPPPSG Information- Chymotrypsin (endopeptidase) hydrolyzes peptide bonds on…
Deduce the amino acid sequence of a polypeptide from the following:1. Acid hydrolysis gives Ala2, Arg, Lys2, Met, Phe, Ser22. Carboxypeptidase gives Ala3. Trypsin digestion gives 4 peptides a) Ala, Arg b) Lys, Phe, Ser c) Lys d) Ala, Met, Ser4. CNBr treatment gives a) Ala, Arg, Lys2, homoserine, Phe, Ser b) Ala, Ser5. Thermolysin is a protease that cuts on the N-terminal side of hydrophobic amino acids (substrate preference is Leu, Ile, Phe, Trp, Tyr, Val). Thermolysin treatment of our polypeptide yields 2 peptides a) Ala, Arg, Ser b) Ala, Lys2, Met, Phe, Ser
After the polypeptide shown below was treated with maleic anhydride, it was hydrolyzed by trypsin. (After a polypeptide is treated with maleic anhydride, trypsin will cleave the polypeptide only on the C-side of arginine.) Gly-Ala-Asp-Ala-Leu-Pro-Gly-Ile-Leu-Val-Arg-Asp-Val-Gly-Lys-Val-Glu-Val-Phe-Glu-Ala-Gly-Arg-Ala-Glu-Phe-Lys-Glu-Pro-Arg-Leu-Val-Met-Lys-Val-Glu-Gly-Arg-Pro-Val-Gly-Ala-Gly-Leu-Trp In what order will the fragments be eluted from an anion-exchange column using a buffer of pH = 5?
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