In this project we synthesize new biomaterials by using the directional bonding properties of coordination compounds to direct the assembly of polypeptides in a predetermined fashion. In particular, linear (Au) and square planar (Re and Pt) metal complexes were used to assemble peptide ligands. The peptide sequence employed in this study is based on the IEALEGK heptad repeat which is known to form two-stranded ?-helical coiled-coils. In order to introduce a metal-bonding site into the peptides a cysteine amino acid was placed at position 14 of the sequence. SDS-PAGE, and MS techniques show that the metal complexes can coordinate the cysteine sites of two peptide chains tests show that the complexes still form coiled-coil structures.