Designing molecules for protein binding. Conceptual artwork of a molecule design process, where the aim is to develop a molecule suited to the particular task of binding to proteins, peptides, enzymes, protein precursors or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Each stage here is named: protomorph (first shape); polyzygo (many joined); neobrachium (new arm); apatofilos (deceptive friend) and deinoraptor (terrible robber).