Protein engineering of lipocalins has led to a well-established class of alternative binding proteins known as Anticalins
®. In the present work, high-affinity variants based on the human lipocalin 2 scaffold were selected against the plant alkaloid colchicine and structurally and functionally investigated to serve as antidotes and/or affinity reagents. Furthermore, lipocalin variants that bind a transition state analog for the Diels-Alder cycloaddition were characterized, including structural analysis, and catalytic activity for this type of reaction was detected for the first time.
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Protein engineering of lipocalins has led to a well-established class of alternative binding proteins known as Anticalins
®. In the present work, high-affinity variants based on the human lipocalin 2 scaffold were selected against the plant alkaloid colchicine and structurally and functionally investigated to serve as antidotes and/or affinity reagents. Furthermore, lipocalin variants that bind a transition state analog for the Diels-Alder cycloaddition were characterized, including structural an...
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