| http://www.w3.org/ns/prov#value | - In one embodiment, the native cysteine residue in either the light or heavy chain of the antibody fragment that would ordinarily form the disulfide bridge linking the light and heavy chains is substituted with another amino acid, such as serine, in order to leave the partner cysteine residue in the opposite chain with a free sulfhydryl for specific attachment of polymer molecule.
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