“…Hence, in many cases synthetic peptides or peptidomimetics, which mimic the sequence of the binding site of any given protein, demonstrate the same biological activity as the protein itself, although sometimes with partial loss of activity. Therefore, arrays of synthetic peptides offer a fast and easy possibility to screen for protein interactions [129], binding regions (epitopes) [130,131] and enzyme activities [132,133]. Moreover, they allow the screening for inhibitors [134] and the engineering of antibodies, enzymes or inhibitors [135] with regard to modified binding sites.…”