Protein
Phosphocarrier protein HPr
Organism
Haloferax volcanii (strain ATCC 29605 / DSM 3757 / JCM 8879 / NBRC 14742 / NCIMB 2012 / VKM B-1768 / DS2)
Function
General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The phosphoryl group from phosphoenolpyruvate (PEP) is transferred to the phosphoryl carrier protein HPr by enzyme I. Phospho-HPr then transfers it to the PTS EIIA domain (By similarity). Is involved in fructose transport.
Similarity
Belongs to the HPr family.
Sequence
MERTVTVVPEDGLHARPASKFVETANKFDADVQLGRADEDDLVPAASMLAVTGLGVGHDESVRLVAEGDDAEAALDALEDILSTPEAKQ