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| {{Infobox enzyme
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| | Name = Catechol 1,2-dioxygenase
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| | EC_number = 1.13.11.1
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| | CAS_number = 9027-16-1
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| | IUBMB_EC_number = 1/13/11/1
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| '''Catechol 1,2-dioxygenase''' ({{EC number|1.13.11.1}}, ''catechol-oxygen 1,2-oxidoreductase'', ''1,2-pyrocatechase'', ''catechase'', ''catechol 1,2-oxygenase'', ''[[catechol dioxygenase]]'', ''pyrocatechase'', ''pyrocatechol 1,2-dioxygenase'', ''CD I'', ''CD II'') is an [[enzyme]] with system name ''catechol:oxygen 1,2-oxidoreductase''.<ref>{{cite book | chapter = Direct oxygenation by O<sub>2</sub>, oxygenases | title = The Enzymes |author = Hayaishi, O. |year = 1963 |volume = 8 |pages = 353–371 |editor = Boyer, P.D., Lardy, H. and Myrbäck, K. |edition = 2nd |publisher = Academic Press |location = New York }}</ref><ref>{{cite journal | title = Studies on oxygenases: pyrocatechase. |author = Hayaishi, O., Katagiri, M. and Rothberg, S. |journal = J. Biol. Chem. |year = 1957 |volume = 229 |pages = 905–920 |pmid = 13502352 |issue=2}}</ref><ref>{{cite journal | title = The mechanism of formation of β-ketoadipic acid by bacteria |author = Sistrom, W.R. and Stanier, R.Y. |journal = J. Biol. Chem. |year = 1954 |volume = 210 |pages = 821–836 |pmid = 13211620 |issue=2}}</ref><ref>{{cite journal | title = Influence of para-substituents on the oxidative metabolism of ''o''-nitrophenols by ''Pseudomonas putida'' B2 |author = Zeyer, J., Kocher, H.P. and Timmis, N. |journal = Appl. Environ. Microbiol. |year = 1986 |volume = 52 |pages = 334–339 |pmid = 3752997 |issue=2 |pmc=203526}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]
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| : [[catechol]] + O<sub>2</sub> <math>\rightleftharpoons</math> cis,cis-muconate | |
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| Catechol 1,2-dioxygenase requires Fe<sup>3+</sup>.
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| The isofunctional enzymes of catechol 1,2-dioxygenase from species of ''[[Acinetobacter]]'', ''[[Pseudomonas]]'', ''[[Nocardia]]'', ''[[Alcaligenes]]'' and ''[[Corynebacterium]]'' oxidize [[3-methylcatechol]] according to both the [[intradiol]] and [[extradiol]] cleavage patterns. However, the enzyme preparations from ''[[Brevibacterium]]'' and ''[[Arthrobacter]]'' have only the intradiol cleavage activity.<ref>Extradiol Cleavage of 3-Methylcatechol by Catechol 1,2-Dioxygenase from Various Microorganisms. C. T. Hou, R. Patel and M. O. Lillard, Appl. Environ. Microbiol., March 1977, volume 33, issue 3, pages 725-727 ([http://aem.asm.org/content/33/3/725 abstract])</ref>
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| == References == | |
| {{reflist}}
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| == External links ==
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| * {{MeshName|Catechol+1,2-dioxygenase}}
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| [[Category:EC 1.13.11]]
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