Fig 1: (A) Representative Western blots and (B) standardized protein expression of the aryl hydrocarbon receptor (AHR) and the aryl hydrocarbon receptor nuclear translocator (ARNT).The protein expression in the intestinal mucosa of TLR2-/- mice and in that of WT mice (n = 5 animals/group) was normalized to a-actin. Statistical analysis was performed with Student's t-test. The expression of both proteins did not differ significantly between the genotypes (P = 0.394 for AHR and 0.737 for ARNT); CL: chemoluminescence.