FIG. 4.
Expression of the lsrA and lsrB genes in free-living cells: agarose gel with gel fragments generated by RT-PCR using different combinations of primers and genomic DNA templates. Lane A, primers for the rpsF and lsrA genes mixed with Rm1021 (wt) total RNA; lane B, primers for the rpsF and lsrA genes mixed with total RNA of the lsrA1 mutant; lane C, primers for the rpsF and lsrB genes mixed with Rm1021 total RNA; lane D, primers for the rpsF and lsrB genes mixed with total RNA of the lsrB1 mutant.