>sp|A2BUA8|YCF3_PROM5 Photosystem I assembly protein Ycf3 OS=Prochlorococcus marinus GN=ycf3 MPNNQNRDNFIDKAFTVIAESIVKIMPIADKEKKAYIYYRDGLAAQNNGDYSEALEYYKE SLLLEENKIDRGETLKNMAIIYMSNGEEDLSIETYQKALVENPKQPSCLKNIGLIYEKRG RYAEQNGDLDQRDMWFDKAAQVWSKAVRLYPGGYLDIENWLKTSGRSSIDIYL