Question

pKa of Amino A- TABLE 2.1 Typical pKa values of ionizable groups in proteins Group Acid Base Typical pKa* Terminal \(\alpha\)-carboxyl group 3.1 Aspartic acid 4.1 Glutamic acid 6.0 Histidine 8.0 Terminal \(\alpha\)-amino group 8.3 Cysteine 10.9 Tyrosine 10.8 Lysine 12.5 Arginine *pKa values depend on temperature, ionic strength, and the microenvironment of the ionizable group.

          pKa of Amino A-
TABLE 2.1 Typical pK<sub>a</sub> values of ionizable groups in proteins
Group
Acid
Base
Typical pK<sub>a</sub>*
Terminal \(\alpha\)-carboxyl group
3.1
Aspartic acid
4.1
Glutamic acid
6.0
Histidine
8.0
Terminal \(\alpha\)-amino group
8.3
Cysteine
10.9
Tyrosine
10.8
Lysine
12.5
Arginine
*pK<sub>a</sub> values depend on temperature, ionic strength, and the microenvironment of the ionizable group.

pKa of Amino A-
TABLE 2.1 Typical pK<sub>a</sub> values of ionizable groups in proteins
Group
Acid
Base
Typical pK<sub>a</sub>*
Terminal α-carboxyl group
3.1
Aspartic acid
4.1
Glutamic acid
6.0
Histidine
8.0
Terminal α-amino group
8.3
Cysteine
10.9
Tyrosine
10.8
Lysine
12.5
Arginine
*pK<sub>a</sub> values depend on temperature, ionic strength, and the microenvironment of the ionizable group.

Added by Alejandra C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Nicholas Mogoi

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Unfortunately, you have not provided the name or abbreviation of amino acid A. However, I can provide you with the typical pKa values for the ionizable groups in common amino acids based on the information you provided in the table. Here are the typical pKa Show more…

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Table 2: Typical pKa values of ionizable groups in proteins Group Acid Base Typical pKa * Terminal carbonyl group Aspartic acid Glutamic acid Histidine Terminal amino group Cysteine Tyrosine 10.9 Lysine 10.8 Arginine 12.5 pKa value: depends on temperature, ionic strength, and the microenvironment of the ionizable group.