TFEB Sumoylation: Enhanced Transcription, Stability, and Nuclear Localization | Role in Cellular Function

"TFEB Sumoylation: Enhanced Transcription, Stability, and Nuclear Localization | Role in Cellular Function" "Discover how sumoylation, a protein modification process, significantly enhances the transcriptional activity of TFEB. Learn about the mechanisms by which sumoylation promotes DNA binding, increases stability, and alters subcellular localization of TFEB, impacting its overall function." "Sumoylation, a process involving the covalent attachment of small ubiquitin-like modifier (SUMO) proteins to target proteins, plays a crucial role in regulating protein function and subcellular localization. TFEB, a master regulator of autophagy and lysosomal biogenesis, undergoes sumoylation, which significantly enhances its transcriptional activity." "Research indicates that sumoylation facilitates TFEB's interaction with DNA, amplifying its transcriptional activation potential. Moreover, sumoylation promotes TFEB stability by inhibiting its degradation. Additionally, sumoylation influences TFEB's subcellular localization. Unsumoylated TFEB primarily resides in the cytoplasm, while sumoylated TFEB predominantly localizes to the nucleus, thus enhancing its transcriptional activity." "In summary, TFEB sumoylation results in increased transcriptional activity, enhanced stability, and altered subcellular localization, collectively contributing to the regulation of its cellular function."