R
"(ÑÀûÜ) 1. R-group, 2. Gas constant, 3. R-configuration, 4.Purine nucleotides, 5.Arginine, 6. Bacterial colony of rough morphology, 7. Resistance of a bacterial strain to an inhibitor, or a phage, 8. Relalxed conformational form, of an allosteric enzyme"