Fig. 2. Expression of recombinant allergens to determine the optimum time point of expression and the fraction where the expressed proteins are found. The transformed
Express I
q E. coli cells (for each allergen) were induced with IPTG and grown for 6 h. Samples were collected and pelleted every 1-hour, including before IPTG induction
(0 hours). The pellets representing the time points 0, 2, 4, 5 and 6 were lysed and the soluble and insoluble fractions were run on SDS gels. The gels were then blotted onto
nitrocellulose and incubated with anti-Xpress antibody for detection purposes. The blots were then detected using a chromogenic substrate. (A) Gal d 1, (B) Gal d 2, (C) Gal
d 3, (D) Gal d 4.
Fig. 2. Expression of recombinant allergens to determine the optimum time point of expression and the fraction where the expressed proteins are found. The transformedExpress Iq E. coli cells (for each allergen) were induced with IPTG and grown for 6 h. Samples were collected and pelleted every 1-hour, including before IPTG induction(0 hours). The pellets representing the time points 0, 2, 4, 5 and 6 were lysed and the soluble and insoluble fractions were run on SDS gels. The gels were then blotted ontonitrocellulose and incubated with anti-Xpress antibody for detection purposes. The blots were then detected using a chromogenic substrate. (A) Gal d 1, (B) Gal d 2, (C) Gald 3, (D) Gal d 4.
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