>tr|A0A2S1NPF1|A0A2S1NPF1_ASCEX Photosystem I iron-sulfur center OS=Asclepias exaltata GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY