>tr|A0A2S1P176|A0A2S1P176_9GENT Photosystem I iron-sulfur center OS=Asclepias uncialis GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY