Protein
4-hydroxyphenylacetate 3-monooxygenase, reductase component
Organism
Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
Function
Catalyzes the reduction of free flavins (FMN, FAD and riboflavin) by NADH. Subsequently, the reduced flavins diffuse to the large HpaB component. It utilizes NADH, but not NADPH as an electron donor, and both FAD and FMN as electron acceptors.
Similarity
Belongs to the non-flavoprotein flavin reductase family. HpaC subfamily.
Sequence
MKEAFKEALARFASGVTVVAARLGEEERGMTATAFMSLSLEPPLVALAVSERAKLLPVLEGAGAFTVSLLREGQEAVSEHFAGRPKEGIALEEGRVKGALAVLRCRLHALYPGGDHRIVVGLVEEVELGEEGPPLVYFQRGYRRLVWPS