Table of pKa and pI values. The pKa values and the isoelectronic point, pI, are given below for the 20 α-amino acids. pKa1= α-carboxyl group, pKa2 ...
Amino acid reference chart contains the twenty amino acids found in ... 1 pKa is the negative of the logarithm of the dissociation constant for the -COOH group.
pK and pl Values of Amino Acids. Name. pK. pI. at 25°C. pK. α-CO2H. pK. NH3. pK. R-group. Alanine. 2.35. 9.87. 6.11. Arginine. 2.18. 9.09. 13.2. 10.76.
Hydropathy values. These numbers are taken from one of many scales that describe the hydrophobicity of the amino acids. The more positive the value, the ...
Amino Acid pKa Values and Side Chain Identities. pKa Values. Amino Acid α- CO2H α-NH3+ Side. Side Chain (Z) – “fully” protonated. Alanine. 2.34. 9.69. – CH3.
Jun 18, 2010 ... Also, the pKa table tells you about leaving group ability. ... An isolectric pH is the pH at which a given amino acid has a net zero charge.
The 20 biological amino acids. Aliphatic nonpolar side chains: Aromatic side chains: Sulfur containing side chains: Acidic side chains: Basic side chains:.
Lysine (pKa = 10.5) and arginine (pKa = 12.5) are basic amino acids that are ... pKa values, and a minor variation of the Henderson-Hasselbalch equation, it is.
Jun 5, 2019 ... Table of contents. Problem AB15.1. ... Amino acids are the fundamental building blocks of peptides and proteins. Peptides, which are ... The pKa of the acid is near 5, and the pKa of the ammonium is near 9. The ammonium ...