Cu(I) luminescence from the tetranuclear Cu4S4 cofactor of a synthetic 4-helix bundle.
Kharenko OA, Kennedy DC, Demeler B, Maroney MJ, Ogawa MY. Cu(I) luminescence from the tetranuclear Cu4S4 cofactor of a synthetic 4-helix bundle. J Am Chem Soc. 2005 Jun 01; 127(21):7678-9.