>tr|A0A089N2T5|A0A089N2T5_9POAL Photosystem I iron-sulfur center OS=Aristida purpurea GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGPETTRSMALSY