PAT1 (PHYTOCHROME A SIGNAL TRANSDUCTION 1); transcription factor. similar to SCL21 (SCARECROW-LIKE 21), transcription factor [Arabidopsis thaliana] (TAIR:AT2G04890.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO41200.1); contains InterPro domain GRAS transcription factor (InterPro:IPR005202)