1-aminocyclopropane-1-carboxylate <=> 2-aminobut-2-enoate
1-aminocyclopropane-1-carboxylate <=> 2-aminobut-2-enoate
1-aminocyclopropane-1-carboxylate <=> 2-aminobut-2-enoate
1-aminocyclopropane-1-carboxylate <=> 2-aminobut-2-enoate