PsaC is a conserved, chloroplast-encoded, Fe-S binding protein of approximately 10kDa, present in all known Photosystem I complexes. It is located on the stromal side of the thylacoid membranes. PsaC coordinates the Fe-S clusters FA and FB through two cysteine-rich domains.This product is a recombinant protein standard, source: Synechocystis PCC 6803.The PsaC protein standard can be used in combination with global anti-PsaC antibodies to quantitate PsaC from a wide range of species. Global antibodies are raised against highly conserved amino acid sequences in the PsaC protein.Quantitative western blot: detailed method description, video tutorial