1. Draw the possible ionization states for each of the following amino acids and label each structure (A, B, C, etc.). Indicate the predominant ionization state at pH = 1, 3, pl, 7, 11 (write the letter designation only). a.) arginine Predominant ionization state: pH 1-____; pH 3-___; pI-_; pH 7-_; pH 11- b.) tyrosine Predominant ionization state: pH 1-_; pH 3-_ ; pI-___; pH 7-_; pH 11-

1. Draw the possible ionization states for each of the following amino acids and label each structure (A, B, C, etc.). Indicate the predominant ionization state at pH = 1, 3, pl, 7, 11 (write the letter designation only). a.) arginine Predominant ionization state: pH 1-__; pH 3-_; pI-_; pH 7-_; pH 11- b.) tyrosine Predominant ionization state: pH 1-_; pH 3-_ ; pI-___; pH 7-_; pH 11-

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter20: Proteins

Section: Chapter Questions

Problem 20.58EP: For the tripeptide SerValMet a. What amino acid is located at the peptides N-terminal end? b. What...

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Shown below is the amino acid tyrosine in its protonated state, with the pK₂of each ionizable proton indicated. pK₂ = 10 HO COOH pk = 9 pK₂ = 2 Which best represents the predominant state of tyrosine at pH 7? a HO. O O OO a b U H3N P H₂N COOH b H₂N COO с НО. H₂N COO d HO. H₂N COO
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(a) One amino acid that is likely to have a net negative charge at pH 8.(b) One amino acid that may be dehydrated with H2SO4.(c) One polar uncharged amino acid. (d) One nonpolar aromatic amino acid.(e) The nonpolar amino acid with the highest molar mass that was not previously selected.
Arginine has these pKa values: pka1 for the carboxyl group = 2.17, pKa2 for the amino group = 9.04, and pKaR for the side chain - 12.48 At pH 7, which groups in arginine are protonated? amino and side chain O B. none Oç all OD. carboxyl and side chain side chain only OE.
Pls help ASAP on both questions I HUMBLY REQUEST
The maximum number of amino acid side chains that can potentially form an ionic bond (+ll- interaction) with the side chain of His is _at pH 21;at pH 7 and at pH 11.5 andat pH 13.5. (assume no partial charges, only +/- whole number integers) 00: 2; 3:1 01:2:4:1 O 2;2;3,0 O 0: 2; 3;0 00:2; 4: 0 00: 0; 2; 2 none of these
please answer 1 and 2