The present invention is related to a method for identifying a parvovirus mutatedstructural protein capable of specifically binding to a binder for an antigen,a parvovirus mutated structural protein which comprises at least one B-cellepitope heterologous to the parvovirus, a multimeric structure comprisingthe protein, a nucleic acid encoding the protein, a virus or cell comprising theprotein, a method of preparing the protein, a medicament comprising the protein,nucleic acid or multimeric structure and its use.
