MKKIFSLVLLGIALFTFAFSSPALAADSVNGAKIFSANCASCHAGGKNLVQAQKTLKKADLEKYGMYSAEAIIAQVTNGKNAMPAFKGRLKPEQIEDVAAYVLGKADADWK Cytochrome c553 cytA CYC6_ANASO Soluble cytochrome f Functions as an electron carrier between membrane-bound cytochrome b6-f and photosystem I in oxygenic photosynthesis (By similarity). petJ 111 Cytochrome c6 Cytochrome c-553