TSG101 Antibody [HRP]


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Product Details

Reactivity Hu, Mu, RtSpecies Glossary
Applications WB, IHC, IHC-P

TSG101 Antibody [HRP] Summary

Partial synthetic peptide made to an internal portion of the human TSG101 protein (between amino acids 125-210) [UniProt Q99816]
Immunogen affinity purified
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  • Western Blot
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Packaging, Storage & Formulations

Store at 4C in the dark.
No Preservative
Immunogen affinity purified

Alternate Names for TSG101 Antibody [HRP]

  • ESCRT-I complex subunit TSG101
  • TSG10
  • tumor susceptibility gene 10
  • tumor susceptibility gene 101 protein
  • tumor susceptibility gene 101
  • tumor susceptibility protein
  • VPS23


Tumor susceptibility 101 protein (human TSG101 theoretical molecular weight 44kDa) is the mammalian homologue of the yeast protein Vps23 which plays a role in endosomal and multivesicular body trafficking. TSG101 forms part of the endosomal sorting complexes required for transport complex 1 (ESCRT-I), a cytosolic multiprotein complex consisting additionally of Vps28, Vps37 (A-D) and Mvb12 (A, B) or UBAP1 (1). TSG101 contains multiple domains including the amino terminal ubiquitin e2 variant (UEV) domain, a proline-rich (RRR) domain, a coiled coil (CC) domain, and a carboxy terminal alpha-helical/steadiness box (SB) domain (2). As part of the ESCRT-I complex, TSG101 interacts through its UEV domain with ubiquitinated membrane proteins and members of the ESCRT-0 complex. The UEV domain plays a critical role for various TSG101 functions such as protein sorting into multivesicular bodies and late endosomes, and in the process of viral budding. For example, TSG101 interacts with the intermediate-conductance, Ca2+ -activated K+ channel (KCa3.1), facilitating its targeting to the lysosome for degradation (3). Additionally, TSG101 has been implicated in the turnover of connexins such as connexins 43 and 45 (4). TSG101 plays a role in other cellular functions including transcriptional regulation, cytokinesis and cell growth (2).

Upon its initial discovery, TSG101 was recognized as a tumor suppressor protein due to the identification of deletions within the TSG101 gene in human breast carcinomas. However, re-examination of the initial findings argued against this function and supported that TSG101 promotes tumorigenesis (2). In agreement with this role, TSG101 expression is upregulated in several types of cancer including breast, ovarian, and colorectal carcinoma.


1. Schmidt, O., & Teis, D. (2012). The ESCRT machinery. Current Biology. https://doi.org/10.1016/j.cub.2012.01.028

2. Jiang, Y., Ou, Y., & Cheng, X. (2013). Role of TSG101 in cancer. Frontiers in Bioscience. https://doi.org/10.2741/4099

3. Balut, C. M., Gao, Y., Murray, S. A., Thibodeau, P. H., & Devor, D. C. (2010). ESCRT-dependent targeting of plasma membrane localized KCa3.1 to the lysosomes. American Journal of Physiology - Cell Physiology. https://doi.org/10.1152/ajpcell.00120.2010

4. Su, V., & Lau, A. F. (2014). Connexins: Mechanisms regulating protein levels and intercellular communication. FEBS Letters. https://doi.org/10.1016/j.febslet.2014.01.013


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

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Video Protocols

WB Video Protocol

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Secondary Antibodies


Isotype Controls

Other Available Formats

Alexa Fluor 350 NBP2-77452AF350
Alexa Fluor 405 NBP2-77452AF405
Alexa Fluor 488 NBP2-77452AF488
Alexa Fluor 532 NBP2-77452AF532
Alexa Fluor 594 NBP2-77452AF594
Alexa Fluor 647 NBP2-77452AF647
Alexa Fluor 700 NBP2-77452AF700
Alexa Fluor 750 NBP2-77452AF750
Biotin NBP2-77452B
DyLight 350 NBP2-77452UV
DyLight 405 NBP2-77452V
DyLight 488 NBP2-77452G
DyLight 550 NBP2-77452R
DyLight 594 NBP2-77452DL594
DyLight 650 NBP2-77452C
DyLight 680 NBP2-77452FR
DyLight 755 NBP2-77452IR
FITC NBP2-77452F
HRP NBP2-77452H
Janelia Fluor 549 NBP2-77452JF549
Janelia Fluor 646 NBP2-77452JF646

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Gene Symbol TSG101