| Modification Notes |
Krüppel-like factors (KLFs) comprise a family of evolutionarily conserved zinc finger-containing transcription factors with diverse regulatory functions in cell growth, proliferation, differentiation and embryogenesis. Individual members of the Sp1-like/KLF family can function either as activators or repressors, depending on which promoter they bind and which coregulators they interact with. KLF12 (krüppel-like factor 12), also known as AP2REP or HSPC122, is a 402 amino acid protein that localizes to the nucleus and contains three C2H2-type zinc fingers. One of several members of the Sp1 C2H2-type zinc-finger protein family, KLF12 binds to a regulatory element in the AP-2å gene promotor and, via this binding, functions as a strong repressor of AP-2å transcription. Two isoforms of KLF12 exist due to alternative splicing events. |