Key Product Details

Species Reactivity

Validated:

Human, Mouse, Rat

Applications

Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit

Format

BSA Free

Concentration

1.0 mg/ml

View all TSG101 Antibodies »

Product Summary for TSG101 Antibody - BSA Free

Immunogen

Partial synthetic peptide made to an internal portion of the human TSG101 protein (between amino acids 125-210) [UniProt Q99816]

Clonality

Polyclonal

Host

Rabbit

Scientific Data Images for TSG101 Antibody - BSA Free

Western Blot: TSG101 AntibodyBSA Free [NBP2-77452]

Western Blot: TSG101 AntibodyBSA Free [NBP2-77452]

Western Blot: TSG101 Antibody [NBP2-77452] - Total protein from human HeLa, HepG2, mouse 3T3 and rat PC12 cells lines was separated on a 12% gel by SDS-PAGE, transferred to PVDF membrane and blocked in 5% non-fat milk in TBST. The membrane was probed with 2.0 ug/mL anti-TSG101 in blocking buffer and detected with an anti-rabbit HRP secondary antibody using West Pico PLUS chemiluminescence detection reagent.
Immunocytochemistry/ Immunofluorescence: TSG101 Antibody - BSA Free [NBP2-77452]

Immunocytochemistry/ Immunofluorescence: TSG101 Antibody - BSA Free [NBP2-77452]

Immunocytochemistry/Immunofluorescence: TSG101 Antibody [NBP2-77452] - NIH3T3 cells were fixed for 10 minutes using 10% formalin and then permeabilized for 5 minutes using 1X PBS + 0.05% Triton X-100. The cells were incubated with anti-TSG101 at 2 ug/mL overnight at 4C and detected with an anti-rabbit DyLight 488 (Green) at a 1:500 dilution. Alpha tubulin (DM1A) NB100-690 was used as a co-stain at a 1:1000 dilution and detected with an anti-mouse DyLight 550 (Red) at a 1:500 dilution. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 40X objective.
Immunohistochemistry-Paraffin: TSG101 Antibody - BSA Free [NBP2-77452]

Immunohistochemistry-Paraffin: TSG101 Antibody - BSA Free [NBP2-77452]

Immunohistochemistry-Paraffin: TSG101 Antibody [NBP2-77452] - Analysis of a FFPE tissue section of the human small intestine using 1:200 dilution of TSG101 antibody (NBP2-77452). The signal was developed using HRP-DAB method which followed counterstaining of the cells with hematoxylin. The antibody generated staining mainly in the cytoplasm and membrane of glandular cells.
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Applications for TSG101 Antibody - BSA Free

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

2 ug/ml

Immunohistochemistry

1:100 - 1:200

Immunohistochemistry-Paraffin

1:100 - 1:200

Western Blot

1 ug/ml
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

PBS

Format

BSA Free

Preservative

0.02% Sodium Azide

Concentration

1.0 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C for up to 3 months. For longer storage, aliquot and store at -20C.

Background: TSG101

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

Long Name

Tumor Susceptibility 101

Alternate Names

TSG10, VPS23

Gene Symbol

TSG101

Additional TSG101 Products

Product Documents for TSG101 Antibody - BSA Free

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

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Product Specific Notices for TSG101 Antibody - BSA Free

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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