Protein Purification
Protein Extraction
Differential Centrifugation
Salting Out
Column Chromatography
Ion-Exchange Chromatography
Anion-Exchange Chromatography
Size Exclusion Chromatography
Affinity Chromatography
Specific Activity
Native Gel Electrophoresis
SDS-PAGE Strategies
Isoelectric Focusing
Diagonal Electrophoresis
Mass Spectrometry
Mass Spectrum
Tandem Mass Spectrometry
Peptide Mass Fingerprinting
Overview of Direct Protein Sequencing
Amino Acid Hydrolysis
Chemical Cleavage of Bonds
Edman Degradation
Edman Degradation Sequenator and Sequencing Data Analysis
Edman Degradation Reaction Efficiency
Ordering Cleaved Fragments
Strategy for Ordering Cleaved Fragments
Indirect Protein Sequencing Via Geneomic Analyses

Concept #1: Edman Degradation Reaction Efficiency

Concept #2: Calculating Cumulative Yield

Practice: Assuming 98% reaction efficiency, calculate the total cumulative yield of the correct PTH-amino acid at the 50th Edman degradation cycle.

Practice: A) A peptide with the primary structure Lys-Arg-Pro-Leu-Ile-Asp-Gly-Ala is sequenced by the Edman degradation procedure. If each Edman cycle is 93% efficient, what percentage of the PTH-amino acids in the fourth Edman cycle will be PTH-Leu?

B) What percentage of the PTH-amino acids in the eighth Edman cycle will be PTH-Ala?