>5KC4_1|Chains A, B[auth E]|Riboflavin transporter RibU|Thermotoga maritima (243274) MGSSIKKISFVGIFSALATLVMFLEFPIFPQASFLKYDPSEIPALIVSFLLGPGVGMFVVLVKDILFFLMKSGDPVGIAMNAVLGMSFVGIAGLIYHRNKSRATAIKGMIVATLFATAFALGLNALIVPLYFEAPFELYLKFFPFILAFNLVKFGIDSVVTFFVYKKVSSILKLSNSLVPR