>tr|A0A2S1P1L3|A0A2S1P1L3_9GENT Photosystem I iron-sulfur center OS=Asclepias vestita subsp. parishii GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY