Description_x000D_ General description_x000D_ Krüppel-like factor 4 (KLF4) is a transcription factor. It can act both as a transcriptional activator or repressor. The gene encoding this protein is localized on human chromosome 9q31.2._x000D_ Immunogen_x000D_ KLF4 (NP_004226.3, )_x000D_ This antibody is generated from rabbits immunized with a his tag recombinant protein of human KLF4._x000D_ Physical form_x000D_ Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ Krüppel-like factor 4 (KLF4) is involved in cell growth, proliferation and differentiation in the colon. It is down-regulated in both mouse and human colonic adenomas. The protein has been implicated as a tumor suppressor in the gut, whereas in breast cancer, KLF4 is an oncogene. It is also involved in reprogramming differentiated cells into pluripotent stem cells.