Fig. 7From: T7-lac promoter vectors spontaneous derepression caused by plant-derived growth media may lead to serious expression problems: a systematic evaluationThe structures of the gene expression-inducing compounds in the Tabor-Studier system used in this work. The names and structures presented in the Haworth projection of the compounds that induce the expression of lac operon genes (IPTG and allolactose) and the saccharides present in significant amounts in soybean meal (glucose, galactose, sucrose, raffinose and stachyose)Back to article page