Proline 96 of the copper ligand loop of amicyanin regulates electron transfer from methylamine dehydrogenase by positioning other residues at the protein-protein interface.
Choi M., Sukumar N., Mathews F.S., Liu A., & Davidson V.L. (2011). “Proline 96 of the copper ligand loop of amicyanin regulates electron transfer from methylamine dehydrogenase by positioning other residues at the protein-protein interface.” Biochemistry. 2011 Feb 22;50(7):1265-73. doi: 10.1021/bi101794y. Epub 2011 Jan 26. (Abstract)