TY - JOUR A1 - Lodemann, Edgar A1 - Drahovsky, Dusan A1 - Flöhl, Rainer A1 - Wacker, Adolf T1 - Über die spezifische Bindung von TMG in E. coli : zum Mechanismus der Enzyminduktion T2 - Zeitschrift für Naturforschung, B N2 - Following treatment with the β-galactosidase inducer [methyl-3H] -thiogalactoside, an induceracceptor-complex was isolated from extracts of E. coli K 12 using DEAE cellulose chromatography. Enzymatic digestion with trypsin suggested that the inducer was bound to a protein component. Specific radioactive peaks demonstrated acceptor activity in the inducible strains E. coli K 12 and ML 3, but different results were obtained using the non-inducible mutants ML 35, ML 308 and ML 309. The potent inhibitor of TMG-induction, o-nitrophenylfucoside, reduced the radioactive acceptor peak and caused a similar inhibition of β-galactosidase synthesis, p-nitrophenylfucoside was ineffective. Further evidence is presented for the in vitro formation of an inducer-acceptor-complex in cell free extracts of E. coli K 12. Y1 - 2014 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/74872 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-748721 SN - 1865-7117 SN - 0932-0776 VL - 22 SP - 301 EP - 306 PB - Verlag der Zeitschrift für Naturforschung CY - Tübingen ER -