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{{Infobox enzyme
| Name = Mycoredoxin
| EC_number = 1.20.4.3
| CAS_number = 
| IUBMB_EC_number = 1/20/4/3
| GO_code = 
| image = 
| width = 
| caption =
}}
'''Mycoredoxin''' ({{EC number|1.20.4.3}}, ''Mrx1'', ''MrxI'') is an [[enzyme]] with system name ''arseno-mycothiol:mycoredoxin oxidoreductase''.<ref>{{cite journal | title = Arsenate reductase, mycothiol, and mycoredoxin concert thiol/disulfide exchange |author = Ordoñez, E., Van Belle, K., Roos, G., De Galan, S., Letek, M., Gil, J.A., Wyns, L., Mateos, L.M. and Messens, J. |journal = J. Biol. Chem. |year = 2009 |volume = 284 |pages = 15107–15116 |pmid = 19286650}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]

: arseno-mycothiol + mycoredoxin <math>\rightleftharpoons</math> arsenite + mycothiol-mycoredoxin disulfide

Reduction of [[arsenate]] is part of a defense mechanism of the cell against toxic arsenate.

== References ==
{{reflist}}

== External links ==
* {{MeshName|Mycoredoxin}}

[[Category:EC 1.20.4]]