Protein
NADH-cytochrome b5 reductase-like protein alnC
Organism
Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139)
Function
NADH-cytochrome b5 reductase-like protein; part of the gene cluster that mediates the biosynthesis of asperlin, a polyketide showing anti-inflammatory, antitumor and antibiotic activities (PubMed:30339758). The first step of the asperlin biosynthesis is the production of the intermediate 2,4,6-octatrienoic acid by the highly redusing polyketide synthase alnA with cleavage of the PKS product by the esterase alnB (PubMed:30339758). 2,4,6-octatrienoic acid is further converted to asperlin via several steps involving the remaining enzymes from the cluster (PubMed:30339758).
Similarity
Belongs to the flavoprotein pyridine nucleotide cytochrome reductase family.
Sequence
MASPASITLAEVARHSSPNDLWIVIEGNVYDVAEYREDHPGGDEILRQFAGKDATTEFQDAGHSNDAYVKLKTLLVGSLQSKTLPENQPEESSRIVSIAVSDRGKIPTKRQARNGNDTSKYGQLPSLVLAGGLALLFFTLKQHPWQSIQGYLSQAQVSRVQSSGWVGFLGGFLTATTLNTAAATFVGLTAKKTLLLRHRELEEYPRVKQHYLPLPPKKPGISGENTQQFLTLVDRQCIAPNVYKVRLQGDGLVIGLGQHLKVLAEIDGRKIQRSYTPVSPVGNSPKVDLIIKVYPKGQLGNYLLNLPLQSRVEIRGPFGRYSPSPTWKHIACIAGGTGIAPIYQVMRAWPGEITLLYGNETWEDILLREELEQLVLQSPRRIKVHHVLGQPKSDWKGLRGWITREMIQDLLPEPSSSTGFLVCGPDGMVRAIRGHFEAIDANGEEKANVFVF