Consider each dipeptide.Part: 0/4Part 1 of 4N—C—COOབཙས་མའི་ཡའི་ཡ[ཡ་སྦ་Identify the amino acid(s) present in this structure. Check all that apply.☐ leucine☐ phenylalanine☐ tyrosine☐ valine☐ methionine☐ glutamine☐ alanine☐ threonine☐ serine☐ cysteine☐ glycine☐ isoleucine☐ asparagine

The structure provided in the image shows a polypeptide segment, specifically part of the backbone…

Answered: Consider each dipeptide. Part: 0/4 Part…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Consider each dipeptide. Part: 0 / 4 Part 1 of 4 HO || H H H3N C-C-N-C-COO Identify the amino acid(s) present in this structure. Check all that apply. U U U glycine cysteine valine alanine Ophenylalanine ☐ U U asparagine tyrosine threonine leucine glutamine serine ☐ isoleucine methionine None of the above X
Explain the Titrimetric profile of Lysine in figure 2.
Consider this structure. CH₂CH₂ Part: 0 / 3 Part 1 of 3 CH2CH2CH ས་ ་ C- CH₁₂ H₁C CH₂ Give the IUPAC name of this structure. ☑
Consider each dipeptide. Part: 0/4 Part 1 of 4 ནམ་ཡ་ ཡའི་ཡའི་ ཨག་པ་“་ Identify the amino acid(s) present in this structure. Check all that apply. alanine glycine x methionine glutamine serine phenylalanine cysteine Isoleucine valine leucine threonine asparagine tyrosine None of the above
Please provide the amino acid sequence for the following protein using proper convention.
A peptide has the sequence Glu-His-Trp-Ser-Gly-Leu-Arg-Pro-Gly The pK₁ values for the peptide's side chains, terminal amino groups, and carboxyl groups are provided in the table. Amino acid Amino pKa Carboxyl pKa Side-chain pKa glutamate 9.60 2.34 4.25 histidine 9.17 1.82 6.00 9.39 2.38 9.15 2.21 9.60 2.34 9.60 2.36 9.04 2.17 10.96 1.99 tryptophan serine glycine leucine arginine proline Calculate the net charge of the molecule at pH 3. Calculate the net charge of the molecule at pH 8. 12.48 net charge at pH 3: net charge at pH 8:
Based on the pK, table for amino acids (Table 1.1), draw the structures with net charge, and the equilibria representing the complete deprotonation of aspartate. Table 1.1 Name pK pk2 pKR Glycine Alanine 2.4 9.8 2.3 9.7 Valine 2.3 2.4 9.6 Leucine 9.6 Isoleucine 2.4 9.7 Methionine 2.3 9.2 Phenylalanine Proline Serine 1.8 9.1 2.0 10.6 2.1 9.2 Threonine 2.6 10.4 Cysteine Asparagine Glutamine 1.8 10.8 8.3 2.0 8.8 2.2 9.1 Tyrosine Tryptophan Aspartate Glutamate 2.2 9.1 10.9 2.4 9.4 2.0 2.2 10.0 3.9 9.7 4.3 Histidine 1.8 9.2 6.0 10.8 Lysine Arginine 2.2 9.2 1.8 9.0 12.5
Provide the number of polypeptide chains present andthe number of amino acid residues in each chain. for https://www.rcsb.org/structure/6j20 Provide the molecular weight of the protein orprotein complex and the total number of atoms. (All of this information can be found in the PDBpage.) Create a figure (available in the PDB page) that shows the topology of your protein, i.e.the secondary structures adopted by different regions of the protein (alpha helix, beta strand).Make sure to also provide a figure legend that helps interpret the figure and appropriate figurecaption that briefly explains the figure.
Consider the peptide Trp-Arg-Glu-Cys-Gly-Tyr. For the drawings requested below, please show them in zig-zag style, from amino to carboxy terminus, with correct stereochemistry Draw the predominant form at pH = 2 Draw the predominant form at pH = 5 Draw the predominant form at pH = 7 Draw the predominant form at pH = 12
Using the following sequence and the amino acid chart, please give the amino acid sequence: 5'-UCAGAUGGGAAGCUUGAUCUUGUGA-3'. Abreviations for the amino acids are accepted. Second Position U A G UGU Cys UUU Phe UUC UCU UCC UCA UCG UAU ]Tyr UAC UGC UGA Stop UGG Trp Ser UUA Levu UUG UAA Stop UAG Stop CUU CỤC CUA CUG CU CC ССА CCG CAU His CAC CGU CGC CGA CGG Leu Pro Arg CAA CAG Gln AUU AUC le AUA AUG Met ACU AAU AAC AAA AAG AGU Ser AGC AGA Arg JAsn ACC The АCА Jlys ACG AGG GCU GGU GGC Gly GUU GAU JAsp GAC GUC Val GUA GCC Ala GCA GAA GGA GGG- GCG- GAG JGlu GUG Third Position (3' end) First Position (5' end)
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.
For the dipeptide Arg–His, find the pI (the pKs are α-amino 9.0, guanidino 12.5, imidazole 6.0, α-carboxylate 2.1).

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