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