>tr|A0A2S1NM75|A0A2S1NM75_9GENT Photosystem I iron-sulfur center OS=Asclepias brachystephana GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY