title: Direct demonstration of electron transfer between tryptophan and tyrosine in proteins.
mesh_terms: D001386:Azides; D004579:Electron Transport; D006860:Hydrogen Bonding; D011506:Proteins / Q000378:metabolism*; D013053:Spectrophotometry; D013816:Thermodynamics; D014364:Tryptophan / Q000378:metabolism*; D014443:Tyrosine / Q000378:metabolism*
chemical_list: D001386:Azides; D011506:Proteins; D014443:Tyrosine; D014364:Tryptophan