... Ren 1, *, Ailan He 1 , Xiang Hu 1 , Wenfeng Zhang 1 ,Liping Yang 1 , Mingjun Liu 1 , Hong Li 1 , Jianlin Zhou 1 , Shuanglin Xiang 1 and Jian Zhang 1, 2 1 Key Laboratory of Protein Biochemistry and ... the interaction between Sp1 and AP-2 affects formation of the Sp1–DNA complex [23];(c) competing model – the AP-2 and Sp1 binding sitesoverlap, and the AP-2 binding competes with the SP1binding ... regulate KCTD10 R. Liu et al. 11 16 FEBS Journal 276 (2009) 11 14 11 24 ª 2009 Hunan Normal University. Journal compilation ª 2009 FEBSBinding of Sp1 and AP-2a to the correspondingsites in the promoter...