2.2 SQUARE inside PROTEIN p0 inside PROTEIN p1 inside SIMPLE_MOLECULE Phosphonoacetaldehyde inside SIMPLE_MOLECULE _space_2_minus_Hydroxypropylphosphonate inside SIMPLE_MOLECULE _space_3_minus_Phosphonopyruvate inside SIMPLE_MOLECULE _space_2_minus_Amino_minus_3_minus_phosphonopropanoate STATE_TRANSITION _space_3_minus_Phosphonopyruvate _space_2_minus_Amino_minus_3_minus_phosphonopropanoate c2 c3 STATE_TRANSITION Phosphonoacetaldehyde _space_2_minus_Hydroxypropylphosphonate c0 c1