>tr|A0A2S1NPY3|A0A2S1NPY3_9GENT Photosystem I iron-sulfur center OS=Asclepias pilgeriana GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY