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- Nilsson, Rune, et al.
(author)
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Different protein A immunosorbents may have different binding specificity for rat immunoglobulins
- 1983
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In: Journal of Immunological Methods. - 1872-7905. ; 62:2, s. 241-245
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Journal article (peer-reviewed)abstract
- Purified polyclonal immunoglobulin preparations representing the 4 rat IgG subclasses were tested for binding to Staphylococcus aureus protein A attached to 3 different solid phases (Staphylococcus aureus Cowan I bacteria, Sepharose CL4B and Sepharose 6MB). Protein A Sepharose CL4B showed higher reactivity with IgG1 and IgG2b than the staphylococci, whereas protein A Sepharose 6MB showed a lower uptake of these subclasses. No differences were seen for IgG2a and IgG2c. Protein A on different solid phases cannot be used interchangeably without confirmation of binding specificity.
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