PIF proteins are not that stable, therefore special precautions should be taken during extraction and whole procedure should be performed in as little light as possible (light green light). Extraction of PIF proteins is described in Shen et al. (2007).,Material used need to be up to 8 days old as detection in older rosette leaf may fail
PIF4(photochromin interaction Factor 4) is a transcription factor involved in the photochromin B signaling pathway. Interacting with APRR1/TOC1 and PIF3, combined with EGL2 and RGA. Aliases :AtPIF4, basic helix-loop-helix protein 9,AtbHLH9, bHLH9, SRL2, Short under red light 2, EN102, transcription factor EN102, bHLH transcription factor bHLH009.
For research use only, not for clinical use.