2jel is a 3 chain structure with sequence from Escherichia coli and Mus musculus. This structure supersedes the now removed PDB entry 1jel. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
PTHP_ECOLI 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 permease (enzymes II/III).
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.