Responsible for the transport of sucrose into the cell, with the concomitant uptake of protons (symport system). Can also transport maltose at a lesser rate. Sucrose transport protein Sucrose permease SUT_SPIOL MAGRNIKNGENNKIAGSSLHLEKNPTTPPEAEATLKKLGLVASVAAGVQFGWALQLSLLTPYVQLLGIPHTWAAYIWLCGPISGMIVQPLVGYYSDRCTSRFGRRRPFIAAGAALVAVAVGLIGFAADIGAASGDPTGNVAKPRAIAVFVVGFWILDVANNTLQGPCRALLADMAAGSQTKTRYANAFFSFFMALGNIGGYAAGSYSRLYTVFPFTKTAACDVYCANLKSCFFISITLLIVLTILALSVVKERQITIDEIQEEEDLKNRNNSSGCARLPFFGQLIGALKDLPKPMLILLLVTALNWIAWFPFLLFDTDWMGKEVYGGTVGEGKLYDQGVHAGALGLMINSVVLGVMSLSIEGLARMVGGAKRLWGIVNIILAVCLAMTVLVTKSAEHFRDSHHIMGSAVPPPPPAGVKGGALAIFAVLGIPLAITFSIPFALASIFSASSGSGQGLSLGVLNLAIVVPQMFVSVTSGPWDAMFGGGNLPAFVVGAVAATASAVLSFTLLPSPPPEAKIGGSMGGH 525 Sucrose-proton symporter