Abstract: We have previously designed a high affinity bivalent protein binder for the
E6 protein, a fusion between a helix from the
E6 associated protein and PDZO9, an engineered variant (
L391F/
K392M) of the second PDZ domain from synapse associated protein 97 (SAP97 PDZ2).
Introduction: PDZO9, in turn, was selected from a library of pWT PDZ2 variants using phage display and it carries two additional mutations as compared to pWT PDZ2,
L391F and
K392M.
Introduction: pWT PDZ2 has two mutations as compared to wild type SAP97 PDZ2 (
I342W and
C378A) and is the variant used in our previous studies on the binding of SAP97 PDZ2.