The easy dislocation of electron allows a flow of electric current which accounts for its high electrical conductivity.
High thermal and electrical conductivity.
Luster and high reflectivity.
Malleability and ductility. They can be beaten or shaped without fracture.
Variability of mechanical strengths (ranging from soft alkali metals to Tungsten, which is hard).Reference: http://chemistry.tutorvista.com/physical-chemistry/metallic-bonding.html
How about Antennapedia Peptide? Can it be used as a reference?