GSBS Student Publications
Title
Coupling tandem affinity purification and quantitative tyrosine iodination to determine subunit stoichiometry of protein complexes
UMMS Affiliation
Graduate School of Biomedical Sciences; Program in Molecular Medicine; Program in Gene Function and Expression
Date
8-2-2003
Document Type
Article
Medical Subject Headings
Electrophoresis, Polyacrylamide Gel; Fungal Proteins; Indicators and Reagents; Iodine Radioisotopes; Kinetics; Polymerase Chain Reaction; Radioisotope Dilution Technique; Tyrosine; Yeasts
Disciplines
Life Sciences | Medicine and Health Sciences
Abstract
Rapid protein purification methodologies, such as strategies involving the tandem affinity purification module, have resulted in the identification of a tremendous number of multisubunit protein complexes. Furthermore, in this modern genomic age, mass spectrometry methods are often coupled with affinity purification to identify the genes that encode each protein subunit. However, simple methodologies to determine the stoichiometry of individual subunits within a multisubunit complex have not received much attention. In this article we describe a procedure to rapidly and efficiently determine the stoichiometry of subunits within multisubunit complexes using a combination of tandem affinity purification and quantitative 125I labeling of subunit tyrosines.
Rights and Permissions
Citation: Methods. 2003 Sep;31(1):104-9.
Related Resources
Journal Title
Methods (San Diego, Calif.)
PubMed ID
12893180
Repository Citation
Smith, Corey Lewis and Peterson, Craig L., "Coupling tandem affinity purification and quantitative tyrosine iodination to determine subunit stoichiometry of protein complexes" (2003). GSBS Student Publications. 1129.
https://escholarship.umassmed.edu/gsbs_sp/1129