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Biotechnol Adv. 2006 Jul-Aug;24(4):420-6. Epub 2006 Mar 9.

Reaction mechanisms of the bacterial enzyme 1-aminocyclopropane-1-carboxylate deaminase.

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Department of Pathology and Laboratory Medicine, UCLA David Geffen School of Medicine, 650 Charles E. Young Drive South, Los Angeles, California 90095, USA.


The enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase promotes plant growth by sequestering and cleaving plant-produced ACC thereby lowering the level of ethylene in the plant. Decreased ethylene levels allow the plant to be more resistant to a wide variety of environmental stresses. Here the biochemical reaction mechanisms involved in ACC deaminase activity are critically reviewed.

[Indexed for MEDLINE]

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