Interactions of pig Fab gamma fragments with protein A from Staphylococcus aureus
Language English Country United States Media print
Document type Journal Article
PubMed
6772531
DOI
10.1007/bf02877346
Knihovny.cz E-resources
- MeSH
- Chromatography, Affinity MeSH
- Dinitrophenols immunology MeSH
- Magnesium pharmacology MeSH
- Immunoglobulin G metabolism MeSH
- Immunoglobulin Fab Fragments * MeSH
- Immunoglobulin Fc Fragments MeSH
- Rabbits MeSH
- Immunoglobulin Light Chains MeSH
- Humans MeSH
- Swine MeSH
- Sepharose MeSH
- Serum Albumin immunology MeSH
- Cattle MeSH
- Staphylococcal Protein A metabolism MeSH
- Immunoglobulin Heavy Chains MeSH
- Animals MeSH
- Check Tag
- Rabbits MeSH
- Humans MeSH
- Cattle MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Dinitrophenols MeSH
- Magnesium MeSH
- Immunoglobulin G MeSH
- Immunoglobulin Fab Fragments * MeSH
- Immunoglobulin Fc Fragments MeSH
- Immunoglobulin Light Chains MeSH
- Sepharose MeSH
- Serum Albumin MeSH
- Staphylococcal Protein A MeSH
- Immunoglobulin Heavy Chains MeSH
Ninety % of pig serum IgG was bound to protein A-Sepharose. Both individual fractions of the IgG, separated on the basis of their electric charge, were adsorbed on protein A-Sepharose to a similar extent. However, these fractions differed in their elution profile from the protein A-Sepharose when a gradient of increasing molarity of MgCl2 was used. Relative amounts of fractions eluted in higher concentrations of MgCl2 were augmented with the increasing amount of IgG bound to SpA-Sepharose. Not only high proportions of Fc fragments, but also nearly half of Fab fragments reacted with protein A. This latter interaction, confirmed also by affinity electrophoresis, did not have the character of a specific reaction of antibody with antigen.
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