Human TSG101 ELISA Kit (Colorimetric)

ELISA: Human TSG101 ELISA Kit (Colorimetric) [NBP3-38762] - Standard Curve Reference

• Reactivity: Hu
• Applications: ELISA
• Suitable Sample Type: Serum, plasma, tissue homogenates and other biological fluids
• Standard Curve Range: 0.312 - 20 ng/mL (example only; lot dependent)
• Sensitivity: 0.105 ng/mL (example only; lot dependent)

Human TSG101 ELISA Kit (Colorimetric) Summary

• Description: Assay Length: 4.5 hours
• Standard Curve Range: 0.312 - 20 ng/mL (example only; lot dependent)
• Sensitivity: 0.105 ng/mL (example only; lot dependent)
• Assay Type: Sandwich ELISA
• Inter-Assay: %CV < 12 (example only; lot dependent)
• Intra-Assay: %CV < 10 (example only; lot dependent)
• Sample Volume: 100 uL
• Kit Type: ELISA Kit (Colorimetric)
• Gene: TSG101

Applications/Dilutions

• Dilutions:
  • ELISA

Packaging, Storage & Formulations

• Storage: Storage of components varies. See protocol for specific instructions.

Alternate Names for Human TSG101 ELISA Kit (Colorimetric)

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

Background

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.

References

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

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. ELISA Kits are guaranteed for 6 months from date of receipt.

FAQs for TSG101 ELISA Kit (NBP3-38762). (Showing 1 - 1 of 1 FAQ).

1. What is the difference between the Quantikine and Duoset ELISA kits?
   • Our Quantikine kits are fully optimized and validated for the sample types listed on the product specific webpage and datasheet, as this can vary between kits. Each kit is supplied ready to use with one pre-coated 96-well plate, a detection antibody directly conjugated to HRP, and all other necessary reagents. These kits are ideal for researchers who want the convenience of a ready to use and optimized ELISA product. Some of these kits are also available prepackaged in larger 6 and 50 plate sizes.Our DuoSet Kits, in contrast, are ELISA development kits containing the capture and detection antibody, the mass-value calibrated standard, and streptavidin-HRP to prepare approximately 5 or 15 plates. Ancillary reagents will need to be used/purchased, and for most kits, we will recommend one of our Ancillary Reagent Kits, which contain the reagents we use ourselves in-house. DuoSet kits are validated only for cell culture supernatant samples and therefore require further development and validation for accurate measurement in more complex samples such as serum and plasma. Our DuoSet Kits offer an economical, flexible alternative for the experienced ELISA user.

Bioinformatics

• Gene Symbol: TSG101