Using a protein library on the basis of human lipocalin 2 (Lcn2), novel binding proteins (“Anticalins”) against the oncofetal isoform of the extracellular matrix protein fibronectin (ED-B Fn) ¬– a specific marker of tumour vasculature – were selected via phage display. Four high affinity Anticalins were biochemically analyzed in detail (SEC, ELISA, SPR) and, further to the validation of specificity towards oncofetal Fn, used to demonstrate immunohistochemical staining of ED-B on tumour cells. In addition, the crystal structures of several Anticalins in complex with ED-B Fn were elucidated.
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Using a protein library on the basis of human lipocalin 2 (Lcn2), novel binding proteins (“Anticalins”) against the oncofetal isoform of the extracellular matrix protein fibronectin (ED-B Fn) ¬– a specific marker of tumour vasculature – were selected via phage display. Four high affinity Anticalins were biochemically analyzed in detail (SEC, ELISA, SPR) and, further to the validation of specificity towards oncofetal Fn, used to demonstrate immunohistochemical staining of ED-B on tumour cells. In...
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