Protein
Polyphenol oxidase
Organism
Escherichia coli (strain K12)
Function
Multicopper oxidase with polyphenol oxidase activity. Is able to oxidize syringaldazine and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) in vitro. The physiological substrate and role of YfiH is not known.
Similarity
Belongs to the multicopper oxidase YfiH/RL5 family.
Sequence
MSKLIVPQWPQPKGVAACSSTRIGGVSLPPYDSLNLGAHCGDNPDHVEENRKRLFAAGNLPSKPVWLEQVHGKDVLKLTGEPYASKRADASYSNTPGTVCAVMTADCLPVLFCNRAGTEVAAAHAGWRGLCAGVLEETVSCFADNPENILAWLGPAIGPRAFEVGGEVREAFMAVDAKASAAFIQHGDKYLADIYQLARQRLANVGVEQIFGGDRCTYTENETFFSYRRDKTTGRMASFIWLI