SCL21 (SCARECROW-LIKE 21); transcription factor. similar to PAT1 (PHYTOCHROME A SIGNAL TRANSDUCTION 1), transcription factor [Arabidopsis thaliana] (TAIR:AT5G48150.1); similar to PAT1 (PHYTOCHROME A SIGNAL TRANSDUCTION 1), transcription factor [Arabidopsis thaliana] (TAIR:AT5G48150.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO41200.1); contains InterPro domain GRAS transcription factor (InterPro:IPR005202)