Single chain antibody and use thereof
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United States of America Patent
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Issued Date -
Aug 3, 2006
app pub date -
Jul 18, 2003
filing date -
Jul 18, 2002
priority date (Note) -
Abandoned
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Abstract
The present invention provides a single chain antibody that retains its original specific binding activity with an antigen, and a labeled single chain antibody in which a labeling substance is bound to the single chain antibody. Specifically, the labeled single chain antibody of the present invention can be produced by linking a labeling substance to a linker part of a single chain antibody. The antibody is produced using a wheat embryo-derived cell-free protein synthesis system, and production is carried out in a low reductive state that allows an intramolecular disulfide bond to be retained. Further, bonding the antibody to a solid phase via the labeling substance enables production of an immobilized single chain antibody as well as a method for analyzing an antigen-antibody reaction using the immobilized single chain antibody.
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