C/EBPα and HNF6 protein complex formation stimulates HNF6‐dependent transcription by CBP coactivator recruitment in HepG2 cells
Yuichi Yoshida, Douglas E. Hughes, Francisco M. Rausa, Il‐Man Kim, Yongjun Tan, Gretchen J. Darlington, Robert H. Costa – 26 January 2006 – We previously demonstrated that formation of complexes between the DNA‐binding domains of hepatocyte nuclear factor 6 (HNF6) and forkhead box a2 (Foxa2) proteins stimulated Foxa2 transcriptional activity. Here, we used HepG2 cell cotransfection assays to demonstrate that HNF6 transcriptional activity was stimulated by CCAAT/enhancer‐binding protein α (C/EBPα), but not by the related C/EBPβ or C/EBPδ proteins.