PSAG. Identical to Photosystem I reaction center subunit V, chloroplast precursor (PSAG) [Arabidopsis Thaliana] (GB:Q9S7N7;GB:Q42310); similar to unnamed protein product [Vitis vinifera] (GB:CAO66840.1); contains InterPro domain Photosystem I reaction centre, PsaK subunit (InterPro:IPR016370); contains InterPro domain Photosystem I psaG/psaK protein; (InterPro:IPR000549)