>tr|A0A2R4QIN0|A0A2R4QIN0_9POAL Photosystem I iron-sulfur center OS=Littledalea alaica GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGPETTRSMALSY