Signal pathways activate transcription factors for their transpo into the nucleus by all except: (A) Detachment of the transcription factor from a complexing protein can unmask a nuclear localisation signal, (B) Phosphorylation of impoin protein increases its binding affinity for transcription factors, (C) Phosphorylation of the transcription factor can increase its impoin binding affinity, (D) Dephosphorylation of the transcription factor can increase its impoin binding affinity
Answer is B. Impoin carrier molecule is not activated Reference: Harper; 30th edition