Intact Genomics 1056-48 BL21(DE3) pLysS, Chemically Competent Cells, 12 x 200µl/Unit - 13-015 | Genesee Scientific Intact Genomics 1056-48 BL21(DE3) pLysS, Chemically Competent Cells, 12 x 200µl/Unit - 13-015 | Genesee Scientific