similar to transcription elongation factor-related [Arabidopsis thaliana] (TAIR:AT5G25520.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO44119.1); contains InterPro domain Transcription elongation factor S-II, central region; (InterPro:IPR003618); contains InterPro domain Spen paralogue and orthologue C-terminal (InterPro:IPR012921)