Plastocyanin petE PLAS_ANASO Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I. 139 MKLIAASLRRLSLAVLTVLLVVSSFAVFTPSASAETYTVKLGSDKGLLVFEPAKLTIKPGDTVEFLNNKVPPHNVVFDAALNPAKSADLAKSLSHKQLLMSPGQSTSTTFPADAPAGEYTFYCEPHRGAGMVGKITVAG