TSG101 Component of the ESCRT-I complex, a regulator of vesicular trafficking process. Binds to ubiquitinated cargo proteins and is required for the sorting of endocytic ubiquitinated cargos into multivesicular bodies (MVBs). Mediates the association between the ESCRT-0 and ESCRT-I complex. Required for completion of cytokinesis; the function requires CEP55. May be involved in cell growth and differentiation. Acts as a negative growth regulator. Involved in the budding of many viruses through an interaction with viral proteins that contain a late-budding motif P-[ST]-A-P. This interaction is essential for viral particle budding of numerous retroviruses. Required for the exosomal release of SDCBP, CD63 and syndecan. It may also play a role in the extracellular release of microvesicles that differ from the exosomes. Belongs to the ubiquitin-conjugating enzyme family. UEV subfamily. Heart, brain, placenta, lung, liver, skeletal, kidney and pancreas. 2 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.
Protein type: Cell cycle regulation; Nuclear receptor co-regulator
Chromosomal Location of Human Ortholog: 7|7 B3
Cellular Component:  cytoplasm; cytoskeleton; cytosol; early endosome; endosome; endosome membrane; ESCRT I complex; extracellular exosome; late endosome; membrane; nucleolus; nucleus; plasma membrane
Molecular Function:  calcium-dependent protein binding; nuclear receptor transcription coactivator activity; protein binding; protein homodimerization activity; protein-containing complex binding; transcription corepressor activity; ubiquitin binding; ubiquitin protein ligase binding; virion binding
Biological Process:  cell cycle; cell cycle arrest; cell differentiation; cell division; cellular protein modification process; endosome to lysosome transport; exosomal secretion; extracellular transport; keratinocyte differentiation; negative regulation of cell proliferation; negative regulation of epidermal growth factor receptor signaling pathway; negative regulation of epidermal growth factor-activated receptor activity; negative regulation of transcription, DNA-templated; positive regulation of exosomal secretion; positive regulation of ubiquitin-dependent endocytosis; positive regulation of viral budding via host ESCRT complex; positive regulation of viral release from host cell; protein monoubiquitination; protein transport; regulation of cell growth; regulation of extracellular exosome assembly; regulation of growth; regulation of MAP kinase activity; ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway; viral budding; viral process
Reference #:  Q61187 (UniProtKB)
Alt. Names/Synonyms: AI255943; CC2; ESCRT-I complex subunit TSG101; OTTMUSP00000029024; TS101; Tsg101; tumor susceptibility gene 101; Tumor susceptibility gene 101 protein
Gene Symbols: Tsg101
Molecular weight: 44,124 Da
Basal Isoelectric point: 6.28  Predict pI for various phosphorylation states
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TSG101

Protein Structure Not Found.


Cross-references to other databases:  STRING  |  Reactome  |  BioGPS  |  Pfam  |  Phospho.ELM  |  NetworKIN  |  UniProtKB  |  Entrez-Gene  |  Ensembl Gene  |  NURSA