TCERG1, CA150, TAF2S, Transcription elongation regulator 1, TATA box-binding protein-associated factor 2S, Transcription factor CA150

This gene encodes a nuclear protein that regulates transcriptional elongation and pre-mRNA splicing. The encoded protein interacts with the hyperphosphorylated C-terminal domain of RNA polymerase II via multiple FF domains, and with the pre-mRNA splicing factor SF1 via a WW domain. Alternative splicing results in multiple transcripts variants encoding different isoforms.