title: Electron spin resonance absorption of tissue constituents.
abstract: The electron spin resonance spectra at g = 2 of the structural and soluble proteins of mouse liver have been investigated separately. The structural materials have signals an order of magnitude stronger. Radicals with important similarities to those occurring in natural tissue can be induced by treating casein with methylglyoxal or crotonaldehyde. The structural proteins of cancer give little or no signal. The color of the proteins and their electron spin resonance signal seem closely related.
mesh_terms: D000818:Animals; D006528:Carcinoma, Hepatocellular / Q000648:ultrastructure; D002364:Caseins; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D008099:Liver / Q000648:ultrastructure*; D008113:Liver Neoplasms / Q000648:ultrastructure; D051379:Mice; D009374:Neoplasms, Experimental / Q000648:ultrastructure; D011487:Protein Conformation; D011506:Proteins / Q000032:analysis*
chemical_list: D002364:Caseins; D011506:Proteins