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La 1-amminociclopropano-1-carbossilato sin … La 1-amminociclopropano-1-carbossilato sintasi (ACC sintasi) è un enzima numero EC 4.4.1.14 appartenente alla classe delle liasi, che catalizza la seguente reazione: S-adenosil-L-metionina 1-amminociclopropano-1-carbossilato + metiltioadenosina L'enzima necessita di piridossalfosfato come cofattore.ssita di piridossalfosfato come cofattore.
, The enzyme aminocyclopropane-1-carboxylic … The enzyme aminocyclopropane-1-carboxylic acid synthase (ACC synthase, ACS) (EC 4.4.1.14) catalyzes the synthesis of 1-Aminocyclopropane-1-carboxylic acid (ACC), a precursor for ethylene, from S-Adenosyl methionine (AdoMet, SAM), an intermediate in the Yang cycle and activated methyl cycle and a useful molecule for methyl transfer: S-adenosyl-L-methionine = 1-aminocyclopropane-1-carboxylate + S-methyl-5′-thioadenosine Like other PLP dependent enzymes, it catalyzes the reaction through a quinonoid zwitterion intermediate and uses cofactor pyridoxal phosphate (PLP, the active form of vitamin B6) for stabilization. This enzyme belongs to the family of lyases, specifically carbon-sulfur lyases. The systematic name of this enzyme class is S-adenosyl-L-methionine S-methyl-5′-thioadenosine-lyase (1-aminocyclopropane-1-carboxylate-forming). Other names in common use include 1-aminocyclopropanecarboxylate synthase, 1-aminocyclopropane-1-carboxylic acid synthase, 1-aminocyclopropane-1-carboxylate synthetase, aminocyclopropanecarboxylic acid synthase, aminocyclopropanecarboxylate synthase, ACC synthase, and S-adenosyl-L-methionine methylthioadenosine-lyase. This enzyme participates in propanoate metabolism. It employs one cofactor, pyridoxal phosphate.employs one cofactor, pyridoxal phosphate.
, La 1-aminocyclopropane-1-carboxylate synth … La 1-aminocyclopropane-1-carboxylate synthase, ACC synthase, est une lyase qui catalyse la réaction :S-adénosyl-L-méthionine 1-aminocyclopropane-1-carboxylate + 5'-méthylthioadénosine. Cette enzyme intervient dans la biosynthèse de l'éthylène chez les plantes où l'éthylène agit comme phytohormone. Comme les autres enzymes qui utilisent le phosphate de pyridoxal comme cofacteur, elle agit à travers la formation d'un zwitterion quinonoïde. Elle constitue l'étape limitante de la production d'éthylène par les plantes ; dans la mesure où son activation intervient dans le processus de mûrissement des fruits et donc bien souvent à leur détérioration, elle fait l'objet de recherches afin d'optimiser la production fruitière en limitant les pertes.oduction fruitière en limitant les pertes.
, La enzima 1-aminociclopropano-1-carboxilat … La enzima 1-aminociclopropano-1-carboxilato sintasa (ACC) (EC 4.4.1.14) cataliza la reacción de descomposición de la S-adenosil-L-metionina en 1-aminociclopropano-1-carboxilato y metiltioadenosina. Esta enzima utiliza el piridoxal 5'-fosfato como cofactor. S-adenosil-L-metionina 1-aminociclopropano-1-carboxilato + metiltioadenosinaopropano-1-carboxilato + metiltioadenosina
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Structure of ACC Synthase
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| rdfs:comment |
La 1-amminociclopropano-1-carbossilato sin … La 1-amminociclopropano-1-carbossilato sintasi (ACC sintasi) è un enzima numero EC 4.4.1.14 appartenente alla classe delle liasi, che catalizza la seguente reazione: S-adenosil-L-metionina 1-amminociclopropano-1-carbossilato + metiltioadenosina L'enzima necessita di piridossalfosfato come cofattore.ssita di piridossalfosfato come cofattore.
, La enzima 1-aminociclopropano-1-carboxilat … La enzima 1-aminociclopropano-1-carboxilato sintasa (ACC) (EC 4.4.1.14) cataliza la reacción de descomposición de la S-adenosil-L-metionina en 1-aminociclopropano-1-carboxilato y metiltioadenosina. Esta enzima utiliza el piridoxal 5'-fosfato como cofactor. S-adenosil-L-metionina 1-aminociclopropano-1-carboxilato + metiltioadenosinaopropano-1-carboxilato + metiltioadenosina
, The enzyme aminocyclopropane-1-carboxylic … The enzyme aminocyclopropane-1-carboxylic acid synthase (ACC synthase, ACS) (EC 4.4.1.14) catalyzes the synthesis of 1-Aminocyclopropane-1-carboxylic acid (ACC), a precursor for ethylene, from S-Adenosyl methionine (AdoMet, SAM), an intermediate in the Yang cycle and activated methyl cycle and a useful molecule for methyl transfer: S-adenosyl-L-methionine = 1-aminocyclopropane-1-carboxylate + S-methyl-5′-thioadenosine-1-carboxylate + S-methyl-5′-thioadenosine
, La 1-aminocyclopropane-1-carboxylate synth … La 1-aminocyclopropane-1-carboxylate synthase, ACC synthase, est une lyase qui catalyse la réaction :S-adénosyl-L-méthionine 1-aminocyclopropane-1-carboxylate + 5'-méthylthioadénosine. Cette enzyme intervient dans la biosynthèse de l'éthylène chez les plantes où l'éthylène agit comme phytohormone. Comme les autres enzymes qui utilisent le phosphate de pyridoxal comme cofacteur, elle agit à travers la formation d'un zwitterion quinonoïde. Elle constitue l'étape limitante de la production d'éthylène par les plantes ; dans la mesure où son activation intervient dans le processus de mûrissement des fruits et donc bien souvent à leur détérioration, elle fait l'objet de recherches afin d'optimiser la production fruitière en limitant les pertes.oduction fruitière en limitant les pertes.
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| rdfs:label |
1-Aminocyclopropane-1-carboxylate synthase
, 1-amminociclopropano-1-carbossilato sintasi
, 1-aminociclopropano-1-carboxilato sintasa
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