| abstract |
The invention provides a method for selecting at least one member from a library of proteinaceous molecules comprising providing at least one cell and/or a functional equivalent thererof, with at least part of said library under conditions that allow binding of any such member to an epitope in and/or on said cells and/or said functional equivalent thereof, removing unbound proteinaceous molecules and selecting said at least one member, wherein said library comprises at least one mutant of a proteinaceous molecule capable of binding to said epitope. |