2.2 SQUARE inside PROTEIN p0 inside PROTEIN p1 inside PROTEIN p2 inside SIMPLE_MOLECULE Acetaldehyde inside SIMPLE_MOLECULE _space_Z_space__minus_5_minus_Oxohex_minus_2_minus_enedioate inside SIMPLE_MOLECULE _space_4_minus_Hydroxy_minus_2_minus_oxopentanoate inside SIMPLE_MOLECULE _space_2_minus_Hydroxymuconate inside SIMPLE_MOLECULE Pyruvate STATE_TRANSITION _space_Z_space__minus_5_minus_Oxohex_minus_2_minus_enedioate _space_4_minus_Hydroxy_minus_2_minus_oxopentanoate c1 c2 STATE_TRANSITION Acetaldehyde _space_4_minus_Hydroxy_minus_2_minus_oxopentanoate c0 c4 c2 STATE_TRANSITION _space_2_minus_Hydroxymuconate _space_Z_space__minus_5_minus_Oxohex_minus_2_minus_enedioate c3 c1