SDS-PAGE gel for XylS produced from the T7 promoter. Samples were crude bacterial lysates from cells containing vector pET16b.xylS, grown in the presence or absence of inducer. Samples were split into soluble and insoluble fractions. Sizes of the protein ladder in kDa are given on the left site.
Zwick et al. BMC Microbiology 2013 13:262 doi:10.1186/1471-2180-13-262