Low-affinity glucose transporter. HXT1 is as well involved in the transport of mannose. Expression is maximal during lag and early exponential phases of growth, decreasing upon further entry into exponential growth. Repressed at high glucose concentrations. Glucose transport is thought to be mediated by two kinetically distinct systems, a glucose-repressible high-affinity system and a constitutive low-affinity system. Present with 23300 molecules/cell in log phase SD medium. Belongs to the major facilitator superfamily. Sugar transporter (TC 2.A.1.1) family.