we have used electron spin resonance ( esr ) spin labels specific for cell-surface carbohydrates , skeletal membrane proteins , or bilayer lipids to find : ( 1 ) simultaneous reaction of the protein-specific spin label , mal-6 , which binds to skeletal protein sh residues , and 10 microm hemin suggested that hemin decreased skeletal protein-protein interactions ;
C0025252
membrane proteins
C0033684
protein