Ferredoxin-3 MPTVAYTRGGAEYTPVYLMKIDEQKCIGCGRCFKVCGRDVMSLHGLTEDGQVVAPGTDEWDEVEDEIVKKVMALTGAENCIGCGACARVCPSECQTHAALS Ferredoxin III FER3_RHOCA 101 Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. fdxB