>3brs_A mol:protein length:289 Periplasmic binding protein/LacI transcriptional regulator MSLKQYYMICIPKVLDDSSDFWSVLVEGAQMAAKEYEIKLEFMAPEKEEDYLVQNELIE EAIKRKPDVILLAAADYEKTYDAAKEIKDAGIKLIVIDSGMKQDIADITVATDNIQAGI RIGAVTKNLVRKSGKIGVISFVKNSKTAMDREEGLKIGLSDDSNKIEAIYYCDSNYDKA YDGTVELLTKYPDISVMVGLNQYSATGAARAIKDMSLEAKVKLVCIDSSMEQIQYLEEG IFEAMVVQKPFNIGYLGVEKALKLLKKEYVPKQLDSGCALITKDNEGHHHHHH