2.2 SQUARE inside PROTEIN p0 inside PROTEIN p1 inside PROTEIN p2 inside SIMPLE_MOLECULE UDP_minus_N_minus_acetylmuramoyl_minus_L_minus_alanyl_minus_D_minus_glutamate inside SIMPLE_MOLECULE UDP_minus_N_minus_acetylmuramate inside SIMPLE_MOLECULE L_minus_Glutamate inside SIMPLE_MOLECULE UDP_minus_N_minus_acetylmuramoyl_minus_L_minus_alanine inside SIMPLE_MOLECULE D_minus_Glutamate STATE_TRANSITION L_minus_Glutamate D_minus_Glutamate c2 c4 STATE_TRANSITION UDP_minus_N_minus_acetylmuramate UDP_minus_N_minus_acetylmuramoyl_minus_L_minus_alanine c1 c3 STATE_TRANSITION UDP_minus_N_minus_acetylmuramoyl_minus_L_minus_alanine UDP_minus_N_minus_acetylmuramoyl_minus_L_minus_alanyl_minus_D_minus_glutamate c3 c4 c0