csj:CSK29544_00439 K27069 LacI family transcriptional regulator, lactose operon repressor | (GenBank) lac repressor csj:CSK29544_00440 K01190 beta-galactosidase [EC:3.2.1.23] | (GenBank) beta-galactosidase csj:CSK29544_00441 K02532 MFS transporter, OHS family, lactose permease | (GenBank) galactoside permease