UBLCP1 (Ubiquitin Like Domain Containing CTD Phosphatase 1): UBLCP1 is a protein that reflects the activity of a phosphatase involved in regulating RNA polymerase II, a key enzyme in transcription. UBLCP1 plays a crucial role in dephosphorylating the C-terminal domain of RNA polymerase II, influencing gene expression and impacting various cellular processes and disease mechanisms.