Aliases for PTRF Gene
External Ids for PTRF Gene
Previous GeneCards Identifiers for PTRF Gene
This gene encodes a protein that enables the dissociation of paused ternary polymerase I transcription complexes from the 3' end of pre-rRNA transcripts. This protein regulates rRNA transcription by promoting the dissociation of transcription complexes and the reinitiation of polymerase I on nascent rRNA transcripts. This protein also localizes to caveolae at the plasma membrane and is thought to play a critical role in the formation of caveolae and the stabilization of caveolins. This protein translocates from caveolae to the cytoplasm after insulin stimulation. Caveolae contain truncated forms of this protein and may be the site of phosphorylation-dependent proteolysis. This protein is also thought to modify lipid metabolism and insulin-regulated gene expression. Mutations in this gene result in a disorder characterized by generalized lipodystrophy and muscular dystrophy. [provided by RefSeq, Nov 2009]
GeneCards Summary for PTRF Gene
PTRF (Polymerase I And Transcript Release Factor) is a Protein Coding gene. Diseases associated with PTRF include lipodystrophy, congenital generalized, type 4 and congenital generalized lipodystrophy. Among its related pathways are Cytoskeletal Signaling and Gene Expression. GO annotations related to this gene include poly(A) RNA binding and rRNA primary transcript binding. An important paralog of this gene is MURC.
UniProtKB/Swiss-Prot for PTRF Gene
Plays an important role in caveolae formation and organization. Required for the sequestration of mobile caveolin into immobile caveolae. Termination of transcription by RNA polymerase I involves pausing of transcription by TTF1, and the dissociation of the transcription complex, releasing pre-rRNA and RNA polymerase I from the template. PTRF is required for dissociation of the ternary transcription complex.