2.2 SQUARE inside PROTEIN p0 inside PROTEIN p1 inside SIMPLE_MOLECULE _space_2_minus_Oxo_minus_3_minus_hydroxy_minus_4_minus_phosphobutanoate inside SIMPLE_MOLECULE O_minus_Phospho_minus_4_minus_hydroxy_minus_L_minus_threonine inside SIMPLE_MOLECULE _space_4_minus_Hydroxy_minus_L_minus_threonine STATE_TRANSITION O_minus_Phospho_minus_4_minus_hydroxy_minus_L_minus_threonine _space_4_minus_Hydroxy_minus_L_minus_threonine c1 c2 STATE_TRANSITION O_minus_Phospho_minus_4_minus_hydroxy_minus_L_minus_threonine _space_2_minus_Oxo_minus_3_minus_hydroxy_minus_4_minus_phosphobutanoate c1 c0