The existence of heme-protein coordinate-covalent bonds in denaturing solvents.
D003580:Cytochromes; D006418:Heme; D011485:Protein Binding; D011489:Protein Denaturation; D012997:Solvents; D013057:Spectrum Analysis; D014508:Urea
D003580:Cytochromes; D012997:Solvents; D006418:Heme; D014508:Urea