5lun
From Proteopedia
(Difference between revisions)
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== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/EFE_PSESH EFE_PSESH]] Simultaneously catalyzes two reactions, namely formation of ethylene and of succinate from 2-oxoglutarate, with a molar ratio of 2:1.<ref>PMID:1445291</ref> | [[http://www.uniprot.org/uniprot/EFE_PSESH EFE_PSESH]] Simultaneously catalyzes two reactions, namely formation of ethylene and of succinate from 2-oxoglutarate, with a molar ratio of 2:1.<ref>PMID:1445291</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Ethylene is important in industry and biological signaling. In plants, ethylene is produced by oxidation of 1-aminocyclopropane-1-carboxylic acid, as catalyzed by 1-aminocyclopropane-1-carboxylic acid oxidase. Bacteria catalyze ethylene production, but via the four-electron oxidation of 2-oxoglutarate to give ethylene in an arginine-dependent reaction. Crystallographic and biochemical studies on the Pseudomonas syringae ethylene-forming enzyme reveal a branched mechanism. In one branch, an apparently typical 2-oxoglutarate oxygenase reaction to give succinate, carbon dioxide, and sometimes pyrroline-5-carboxylate occurs. Alternatively, Grob-type oxidative fragmentation of a 2-oxoglutarate-derived intermediate occurs to give ethylene and carbon dioxide. Crystallographic and quantum chemical studies reveal that fragmentation to give ethylene is promoted by binding of l-arginine in a nonoxidized conformation and of 2-oxoglutarate in an unprecedented high-energy conformation that favors ethylene, relative to succinate formation. | ||
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| + | Structural and stereoelectronic insights into oxygenase-catalyzed formation of ethylene from 2-oxoglutarate.,Zhang Z, Smart TJ, Choi H, Hardy F, Lohans CT, Abboud MI, Richardson MSW, Paton RS, McDonough MA, Schofield CJ Proc Natl Acad Sci U S A. 2017 May 2;114(18):4667-4672. doi:, 10.1073/pnas.1617760114. Epub 2017 Apr 18. PMID:28420789<ref>PMID:28420789</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 5lun" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 06:27, 4 May 2017
Ethylene Forming Enzyme from Pseudomonas syringae pv. phaseolicola - P1 ultra-high resolution crystal form in complex with iron, N-oxalylglycine and arginine
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