. "Any process that activates or increases the frequency, rate or extent of activity of a transcription factor, any factor involved in the initiation or regulation of transcription." . . . "positive regulation of sequence-specific DNA binding transcription factor activity" . "activation of transcription factor activity" . "positive regulation of transcription factor activity" . "stimulation of transcription factor activity" . "up regulation of transcription factor activity" . "up-regulation of transcription factor activity" . "upregulation of transcription factor activity" . . . . . .