Induction of stress-response proteins in C/EBPβ+/+,
C/EBPβ–/–, and
C/EBPβ–/– (LIP) MEFs. WT, mutant, and
C/EBPβ–/– cells stably expressing LIP
(C/EBPβ–/– (LIP)) were treated with Tg for the
indicated times. A and C–E, Western blot analysis of
nuclear (A) or total (C–E) cell extracts probed with
antibodies for the indicated proteins. B, quantification of the
LIP/LAP ratio from A. F, quantification of C/EBPβ mRNA levels in
MEFs treated with Tg for the indicated times. Data from qRT/PCR analysis of
total RNA using C/EBPβ specific primers were normalized to the signal of
18 S ribosomal RNA. CON, control.