| Primary Identifier | IPR006318 | Type | Domain |
| Short Name | PTS_EI-like |
| description | Most proteins with this domain are known or deduced to function as the phosphoenolpyruvate-protein phosphotransferases (or enzyme I) of PTS sugar transport systems. Enzyme I transfers the phosphoryl group from phosphoenolpyruvate (PEP) to the phosphoryl carrier protein (HPr). This domain is also found in enzyme I-Ntr, which transfers the phosphoryl group from PEP to the phosphoryl carrier protein NPr, and is involved in regulating nitrogen metabolism [], indicating that not all phosphotransferase system components are associated directly with sugar transport. In Xanthomonas campestris, FruB is a multiphosphoryl transfer protein involved in fructose transport that consists of three domains: a fructose-specific enzyme-IIA-like N-terminal domain, followed by an HPr-like domain and an enzyme-I-like C-terminal domain, represented by this entry []. |
