>sp|A2BQN3|PCYA_PROMS Phycocyanobilin:ferredoxin oxidoreductase OS=Prochlorococcus marinus GN=pcyA MLSESLTKSKLTDPLILDLLQNIREHRSMLEDLKSIKIDPKLTNIISKEIGRELYIENEF HKAKGFRKLHIEVAEFSKNLKILHCVFFPDPKFDIPIFGMDLVKINDIVSAAIVDLSPAS QNQGLKYEKLLSEVDKSSFTSLREIPKWGGIFSNNVFFASLKRKSEKNDFCRVVDQYLTI LIKLSKRAKPEVNEEIIQERIDFQKNYCVQQMKNEKTSMVLLKYFDEKWVNNYIKTVLFD F