Protein
Cbb3-type cytochrome c oxidase subunit FixP
Organism
Azorhizobium caulinodans (strain ATCC 43989 / DSM 5975 / JCM 20966 / NBRC 14845 / NCIMB 13405 / ORS 571)
Function
C-type cytochrome. Part of the cbb3-type cytochrome c oxidase complex. FixP subunit is required for transferring electrons from donor cytochrome c via its heme groups to FixO subunit. From there, electrons are shuttled to the catalytic binuclear center of FixN subunit where oxygen reduction takes place. The complex also functions as a proton pump (By similarity).
Similarity
Belongs to the CcoP / FixP family.
Sequence
MSTSHESHHAPVDGAGGPSTTGHEWDGIQELNNPLPRWWLWTFYATIIWAFGYWVAYPAWPLVSNYTSGVLGWNSRSAVVEQISDLQKLRAASSAKLANVPLEDIEKNPELLSLARAEGKVAFADNCAPCHGAGGGGAKGFPNLNDDDWLWGGTLAQIQQTITHGIRSGDDEGHQGNMLAFGSILSKADISNVADYVRSLSGAAPGDTPAAKKGAEIFAANCATCHGENGKGNQELGSKNLTDGIWLYGGDKATIVQTITNGRGGVMPAWGPRLSPTTIKALTVYVHTLGGGQ