UhpC is a membrane-bound sensor protein inEscherichia colirequired for recognizing external glucose-6-phosphate (Glc6P) and induction of the transport protein UhpT. Recently, it was shown that UhpC is also able to transport this studywe investigatedwhether these transport and sensing activities are obligatorily coupled in expressed a His-UhpC protein in a UhpC-deficientE. coli strain and verified that this construct does not alter the basic biochemical properties of the Glc6Psensor system
