0 B2R0.1 C[NH2+]C gut36 [0,0,0,0,0,0|2,0,1]=3 1 B3R0.2 C[NH+](C)C gut37 [0,1,0,0,0,0|2,0,1]=4 2 B4R0.1 C(C(=O)[O-])[NH3+] gut42 [0,2,0,0,0,0|1,0,1]=4