>tr|A0A2S1UB20|A0A2S1UB20_9GENT Photosystem I iron-sulfur center OS=Thyrsanthella difformis GN=psaC MSHSVKIYDTCIGCTQCVRACPTDVLEMIPWDGCKAKQIASAPRTEDCVGCKRCESACPT DFLSVRVYLGAETTRSMGLAY