>tr|A0A2S1NWI0|A0A2S1NWI0_9GENT Photosystem I iron-sulfur center OS=Asclepias perennis GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY