A heptapeptide was analyzed by Pinky. She reacted it with carboxypeptidase and found out that it reacted with proline. Partial hydrolysis of the heptapeptide gave the following shorter peptides:Tyr-LeuSer-ArgTyr-Trp-SerTyr-Leu-ProWhat is the sequence of the heptapeptide? Input the three-letter codes of the amino acids separated by dashes with no space character (e.g. Arg-Ser-Leu).

Protein sequencing is the method used for determining the amino acid sequence or the primary…

Answered: A heptapeptide was analyzed by Pinky.…

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 15QP

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The following steps were performed using enzyme cleavage of a peptide to determine its amino acid sequence. Step 1. FDNB yield DNB-Gly Step 2. Treatment with trypsin yield 3 fragments: Tyr-Leu-Asp-Arg; Gly-Ser-Ala-Lys; Trp-Gly-Ser-Met Step 3. Treatment with pepsin gave the same 3 peptide fragments. What is the sequence of the peptide?
use one-letter code for the amino acid if needed what is the sequence of peptide 4?
What are the sequences of all the possible tripeptides that contain the amino acids, serine, leucine and phenylalanine? Use 3-letter abbreviations to express your answer.
Write the structure of each of the following peptides. Start with the N-terminal and the COO- on the right end. His-trp-cys Gly-leu-ser Arg-ile-val His-arg-lys
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
Form DIANINE name using the one-letter symbol and draw it as a peptide chain. Name the peptide as well.
The bacterially produced antibiotic gramicidin A forms channels in cell membranes that allow the free diff usion of Na+ and K+ ions, thereby killing the cell. This peptide consists of a sequence of Dand L-amino acids. The sequence of a segment of fi ve amino acids in gramicidin A is R-Gly-L-Ala-D-Leu-L-Ala-D-Val-R′. Complete the Fischer projection below by adding the correct group to each vertical bond.
Write the anticodons for the following amino acids: a) Met b) Trp c) Ser d) Leu
Based on the following image, what is the N-terminal AA residue, C-terminal AA residue? What is also the sequence of peptide 2 and peptide 3? Also identify the overall amino acid sequence
Describe how two amino acids are combined to form apolypeptide.
A peptide digested with trypsin produced the following three fragments: C, ASFPK, GGRWDGK The same peptide digested with chymotrypsin produced the following three fragments: PKGGRW, DGKC, and ASF What is the primary structure of the peptide?
Which of the following amino acid is acetylated when DNA is unwound from histones? a. Asparagine b. Lysine c. Arginine d. Glycine

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