>tr|A0A2S1NQS2|A0A2S1NQS2_9GENT Photosystem I iron-sulfur center OS=Asclepias hallii GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY