Figure 5.

Oncogenic K-ras differentially regulates PKCβII expression in the proximal and distal colon. (a) Immunoblot analysis of PKCβII protein expression in colonic epithelium isolated from the distal and proximal colon of 2 LSL-K-rasG12D mice (LSL) and 2 LSL-K-rasG12D/Vil-Cre/+ mice (LSL/cre). Actin protein levels are shown as a loading control. Immunoblot results are representative of 3 independent experiments. (b) PKCβII mRNA abundance was determined by qRT-PCR analysis of mRNA isolated from the colonic epithelium of LSL and LSL/cre mice. RNA abundance was normalized to GAPDH. Values represent mean ± SEM; n = 3–6.