Please help! Sketch a titration curve of the peptide Ala-Tyr-Gln-Met-Asp-His from pH=0 to 14 up to 5 equivalnets of KOH
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Please help! Sketch a titration curve of the peptide Ala-Tyr-Gln-Met-Asp-His from pH=0 to 14 up to 5 equivalnets of KOH
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- Leu-Trp-Phe-Met-Ala-Ile-Val- Draw the structure of the peptide at pH7.4. and Indicate the hydrogen bonds formed in the alpha helix.Please ASAP. Thank you. How does the mutation change/affect the structure of the Hb heterotetramer (ie how is quaternary protein structure affected)?1CFD CALCIUM-FREE CALMODULIN How long is the protein’s primary sequence?Does this protein have any secondary, tertiary and/or quaternary structures present?Are there any molecular additions to this protein that are not amino ac
- Asp-Gly-Lys-Glu-Ile-Phe Draw its full chemical structure as it would exist at pH = 7.0. Draw an arrow pointing to each peptide bond. Identify the net charge of the peptide and briefly explain how you arrived at this answer.Please calculate and plot the charge on a peptide with the sequence of NEYK over the pH range from 1 to 13. Please use the pKa values from the table. You may calculate the charge at 1 pH unit intervals.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
- Vasopressin: CYFQNCPRG Oxytocin: CYIQNCPLG Please calculate the overall charge of the peptides at pH 1,7,9,11 and 14. Are these peptides positvely or negatively charged at pH 7? Between which pH values in this range are the peptides neutral? Calculate the pI of each peptide. How might the differences impact their function?Pro-Ser-Ala-Phe-Glu. Draw this peptide at pH 7 and include its stereochemistry.Draw out this peptide using condensed or line-bond structures: His-Thy-Phe-Cys-Glu examine your drawing of peptide for each amino acid, indicate what type(s) of interactions it can contribute to protein tertiary structure
- Sars-CoV-2 spike protein: VGIYLQKTSDHRPEFALAMN What is its isoelectric point of this peptide?you have the following peptide Arg-Ile-Pro-Leu-Asp-Lys-Glu The net charge on this peptide at pH 7.0 is ?. The net charge on this peptide at 1M HCl is ?.Identify and briefly describe the different PEGylation strategies you can use to PEGylate this peptide and draw the chemical structure of the resulting mPEG peptide conjugates.