InnateDB Protein
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IDBP-211694.6
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Last Modified
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2014-10-13 [Report errors or provide feedback]
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Gene Symbol
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Ptrf
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Protein Name
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polymerase I and transcript release factor
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Synonyms
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2310075E07Rik; AW546441; Cav-p60; Cavin;
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Species
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Mus musculus
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Ensembl Protein
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ENSMUSP00000058321
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InnateDB Gene
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IDBG-211692 (Ptrf)
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Protein Structure
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Function |
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. {ECO:0000269PubMed:11139612, ECO:0000269PubMed:18056712, ECO:0000269PubMed:18191225, ECO:0000269PubMed:18840361, ECO:0000269PubMed:9582279}.
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Subcellular Localization |
Membrane, caveola. Cell membrane {ECO:0000250UniProtKB:Q6NZI2}. Microsome {ECO:0000250UniProtKB:Q6NZI2}. Endoplasmic reticulum {ECO:0000250}. Cytoplasm, cytosol {ECO:0000250}. Mitochondrion {ECO:0000250UniProtKB:Q6NZI2}. Nucleus {ECO:0000250UniProtKB:Q6NZI2}. Note=Found at the surface of the caveolae. Also found in the plasma membrane, microsomal and cytosolic fractions and at a low level in the mitochondrial and nuclear fractions (By similarity). Translocates to the cytoplasm from caveolae upon insulin stimulation (By similarity). CAV1 is necessary to recruit it to the cell membrane. Colocalizes with CAV1 in lipid rafts in adipocytes. {ECO:0000250}.
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Disease Associations |
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Tissue Specificity |
Expressed in all tissues tested (lung, heart, testis, kidney, muscle, liver, spleen and brain). Highest levels in lung and heart. {ECO:0000269PubMed:11161808, ECO:0000269PubMed:18191225}.
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Comments |
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Number of Interactions
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This gene and/or its encoded proteins are associated with 24 experimentally validated interaction(s) in this database.
They are also associated with 23 interaction(s) predicted by orthology.
Experimentally validated |
Total |
24
[view]
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Protein-Protein |
24
[view]
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Protein-DNA |
0
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Protein-RNA |
0
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DNA-DNA |
0
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RNA-RNA |
0
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DNA-RNA |
0
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Predicted by orthology |
Total |
23 [view]
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Molecular Function |
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Biological Process |
GO:0006355
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regulation of transcription, DNA-templated
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GO:0006361
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transcription initiation from RNA polymerase I promoter
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GO:0006363
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termination of RNA polymerase I transcription
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Cellular Component |
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PDB ID |
MGI:1277968
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InterPro |
IPR010310
Type VII secretion system ESAT-6-like
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PFAM |
PF06013
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PRINTS |
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PIRSF |
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SMART |
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TIGRFAMs |
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Modification |
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SwissProt |
O54724
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PhosphoSite |
PhosphoSite-O54724
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TrEMBL |
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UniProt Splice Variant |
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Entrez Gene |
19285
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UniGene |
Mm.400517
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RefSeq |
NP_033012
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MGI ID |
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MGI Symbol |
Ptrf
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OMIM |
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CCDS |
CCDS25442
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HPRD |
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IMGT |
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EMBL |
AF036249
AF458959
AL591466
BC110698
BC116701
BC117527
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GenPept |
AAC53588
AAI10699
AAI16702
AAI17528
AAL60240
CAM19459
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