Ch. 26 - Amino Acids, Peptides, and ProteinsSee all chapters
All Chapters
Ch. 1 - A Review of General Chemistry
Ch. 2 - Molecular Representations
Ch. 3 - Acids and Bases
Ch. 4 - Alkanes and Cycloalkanes
Ch. 5 - Chirality
Ch. 6 - Thermodynamics and Kinetics
Ch. 7 - Substitution Reactions
Ch. 8 - Elimination Reactions
Ch. 9 - Alkenes and Alkynes
Ch. 10 - Addition Reactions
Ch. 11 - Radical Reactions
Ch. 12 - Alcohols, Ethers, Epoxides and Thiols
Ch. 13 - Alcohols and Carbonyl Compounds
Ch. 14 - Synthetic Techniques
Ch. 15 - Analytical Techniques: IR, NMR, Mass Spect
Ch. 16 - Conjugated Systems
Ch. 17 - Aromaticity
Ch. 18 - Reactions of Aromatics: EAS and Beyond
Ch. 19 - Aldehydes and Ketones: Nucleophilic Addition
Ch. 20 - Carboxylic Acid Derivatives: NAS
Ch. 21 - Enolate Chemistry: Reactions at the Alpha-Carbon
Ch. 22 - Condensation Chemistry
Ch. 23 - Amines
Ch. 24 - Carbohydrates
Ch. 25 - Phenols
Ch. 26 - Amino Acids, Peptides, and Proteins

Isoelectric Point

See all sections
Sections
Proteins and Amino Acids
L and D Amino Acids
Polar Amino Acids
Amino Acid Chart
Acid-Base Properties of Amino Acids
Isoelectric Point
Additional Practice
Amino Acid Nomenclature

In this section we will be doing small calculations in order to determine the isolectric point (pI) of various amino acids. 

Concept #1: Definition of Isoelectric Point

Concept #2: Isoelectric Point of Non-Charged Amino Acids

Concept #3: Isoelectric Point of Charged Amino Acids

Concept #4: Isoelectric Point of Cysteine

Practice: Calculate the isoelectric point of tyrosine (Y)

Practice: Calculate the isoelectric point of glutamic acid (E)