Laccase-like multicopper oxidase 1

UniProtKB accession:  G2QFD0

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Yellow laccase-like multicopper oxidase that is able to oxidize a variety of phenolic compounds including standard laccase substrates such as 2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and 2,6-dimethoxyphenol (2,6-DMP) (PubMed:30529567, PubMed:37326583). The existence of an ortho-hydroxy group is crucial for oxidation since pyrogallol and catechol, which contain ortho-hydroxy groups, are readily oxidized, which is not the case for resorcinol and hydroquinone, that contain meta- and para-hydroxy groups, respectively (PubMed:37326583). The same is also true for the existence of a methoxy group in an ortho-position, since 2,6-DMP, guaiacol and ferulic and caffeic acids are also rather easily oxidized compared with the corresponding unsubstituted compound (PubMed:37326583). Can be used for the bioconversion of 2',3,4-trihy-droxychalcone to 3',4'-dihydroxy-aurone, a bioactive aurone recently shown to possess inhibitory activity against several isoforms of the histone deacetylase complex (HDAC) (PubMed:30529567).