PSAE-1 MASIASSVAVRLGLTQVLPNKNFSSPRSTRLVVRAAEEAAAAPAAASPEGEAPKAAAKPPPIGPKRGSKVRIMRKESYWYKGVGSVVAVDQDPKTRYPVVVRFNKVNYANVSTNNYALDEIQEVA Stabilizes the interaction between psaC and the PSI core, assists the docking of the ferredoxin to PSI and interacts with ferredoxin-NADP oxidoreductase (By similarity). PSAE_SPIOL 125 Photosystem I reaction center subunit IV, chloroplastic