pscC
PscC is a diheme cytochrome c subunit of the photosynthetic reaction center found in certain purple bacteria, including Rhodobacter and Rhodopseudomonas species. It is encoded by the pscC gene as part of the photosynthesis gene cluster that also contains other RC components such as pscA, pscB, and pscD. PscC is a relatively small, periplasmic protein that carries two heme cofactors, a hallmark of c-type cytochromes, enabling it to participate in electron transfer processes associated with the reaction center.
Structure and localization: PscC binds two hemes via covalent attachments typical of c-type cytochromes and is
Function and mechanism: The protein functions as an electron transfer mediator, delivering electrons to the reaction
Genetics and evolution: PscC is part of the conserved psc gene cluster found in many purple photosynthetic
Research context: PscC has been characterized through biochemical and structural studies in diverse purple bacteria, contributing