Chapter title |
Immunoaffinity purification and quantification of antibody-toxin conjugates.
|
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Chapter number | -896031748 |
Book title |
Immunochemical Protocols
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Published in |
Methods in molecular biology, January 1992
|
DOI | 10.1385/0-89603-204-3:295 |
Pubmed ID | |
Book ISBNs |
978-0-89603-204-0, 978-1-59259-497-9
|
Authors |
Wawrzynczak, E J, Cumber, A J, Edward J. Wawrzynczak, Alan J. Cumber |
Abstract |
Cytotoxic antibody-toxin conjugates made using antibodies and ribs some-inactivating proteins (RIPs) are prepared using chemical crosslinking methods (1,2 and this vol., Chapter 31 ). Gel permeation chromatography is used as a first step to purify conjugate molecules from the reaction mixture. This procedure removes protein aggregates, the excess of RIP employed in the conjugation reaction, and low molecular weight byproducts. However, a significant fraction of the resulting conjugate preparation consists of unconjugated antibody that cannot be completely separated from the conjugate on the basis of size discrimination alone (see chapter 31 ). |
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