Revision 3

#95940Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IHC-Bond, IHC-P, FC-L

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

28-40, 50-70

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q10589

Entrez-Gene Id:

684

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
IHC Leica Bond 1:400 - 1:1600
Immunohistochemistry (Paraffin) 1:200 - 1:800
Flow Cytometry (Live) 1:50 - 1:200

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier free (BSA and azide free) version of this product see product #38142.

Specificity / Sensitivity

BST2 (E4N3W) XP® Rabbit mAb recognizes endogenous levels of total BST2 protein. This clone shows a preference for the BST2 dimer by western blot.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with human BST2 recombinant protein.

Background

BST2 (CD317, Tetherin, HM1.24) is a type II transmembrane glycoprotein functioning as a major mediator of the innate immune defense against the dissemination of enveloped viruses by tethering virion on the cell surface (1). BST2 has an N-terminal cytoplasmic tail for endocytosis and cytoskeletal signaling, a transmembrane domain, an extracellular domain containing putative disulfide bonds and coiled-coil region for homodimer formation, and a C-terminal GPI domain for membrane anchoring (2,3). Both the transmembrane domain and the GPI domain can insert either into the cell membrane or the viral envelope membrane and hold them together to prevent viral release. Some viruses encode proteins, such as HIV-1 and Vpu, respectively, to act as antagonists to counteract BST2 (2,3). BST2 is overexpressed in gastrointestinal cancers, breast cancer, lung cancer, and multiple myeloma (4-7). BST2 monoclonal antibody targeting myeloma or lung cancer cells induces cellular cytotoxicity and cell death (ADCC, antibody-dependent cell-mediated cytotoxicity). Thus, BST2 serves as a potential target for tumor immunotherapy.

  1. Le Tortorec, A. et al. (2011) Viruses 3, 520-40.
  2. Douglas, J.L. et al. (2010) PLoS Pathog 6, e1000913.
  3. Kuhl, B.D. et al. (2011) J Neuroimmune Pharmacol 6, 188-201.
  4. Mukai, S. et al. (2016) Ann Surg Oncol, 594-602.
  5. Sayeed, A. et al. (2013) PLoS One 8, e67191.
  6. Wang, W. et al. (2009) Cancer Immunol Immunother 58, 967-76.
  7. Harada, T. and Ozaki, S. (2014) Biomed Res Int 2014, 965384.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IHC-Bond: IHC Leica Bond IHC-P: Immunohistochemistry (Paraffin) FC-L: Flow Cytometry (Live)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Alexa Fluor is a registered trademark of Life Technologies Corporation.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

使用に関する制限

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Revision 3
#95940

BST2 (E4N3W) XP® Rabbit mAb

Western Blotting Image 1: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Western blot analysis of extracts from various cell lines using BST2 (E4N3W) XP® Rabbit mAb (upper) or β-Actin (D6A8) Rabbit mAb #8457 (lower). Negative expression of BST2 protein in DU 145 cells is consistent with the predicted expression pattern.
Western Blotting Image 2: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Western blot analysis of extracts from Hep G2 cells, lysed with Blue Loading Buffer Pack #7722, using 1X Blue Loading Buffer (-) or 1X Blue Loading Buffer + 1X DTT (Dithiothreitol) #7016 (+), using BST2 (E4N3W) XP® Rabbit mAb (upper), BST2 (D5V5Z) Rabbit mAb #19277 (middle), or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). The DTT reducing agent demonstrates that BST2 (E4N3W) XP® Rabbit mAb shows a preference for the dimer, while BST2 (D5V5Z) Rabbit mAb #19277 shows a preference for the BST2 monomer.
Western Blotting Image 3: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Western blot analysis of extracts from 293T cells, mock transfected (-) or transfected with a construct expressing Myc/DDK-tagged full-length human BST2 protein (hBST2-Myc/DDK; +), using BST2 (E4N3W) XP® Rabbit mAb (upper), Myc-Tag (71D10) Rabbit mAb #2278 (middle), or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower).
Immunohistochemistry Image 1: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human endometroid adenocarcinoma using BST2 (E4N3W) XP® Rabbit mAb performed on the Leica® BOND Rx.  
Immunohistochemistry Image 1: BST2 (E4N3W) XP® Rabbit mAb Expand Image

Immunohistochemical analysis of paraffin-embedded human hepatocellular carcinoma
 using BST2 (E4N3W) XP® Rabbit mAb.

Immunohistochemistry Image 2: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human colon adenocarcinoma using BST2 (E4N3W) XP® Rabbit mAb.
Immunohistochemistry Image 3: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human non-Hodgkin lymphoma
 using BST2 (E4N3W) XP® Rabbit mAb.
Immunohistochemistry Image 4: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded normal human spleen using BST2 (E4N3W) XP® Rabbit mAb.
Immunohistochemistry Image 5: BST2 (E4N3W) XP® Rabbit mAb Expand Image

Immunohistochemical analysis of paraffin-embedded normal human brain using BST2 (E4N3W) XP® Rabbit mAb.

Immunohistochemistry Image 6: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human hepatocellular carcinoma using BST2 (E4N3W) XP® Rabbit mAb (left) compared to concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (right). 
Immunohistochemistry Image 7: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded RPMI 8226 cell pellet (left, positive) or DU 145 cell pellet (right, negative) using BST2 (E4N3W) XP® Rabbit mAb.
Flow Cytometry Image 1: BST2 (E4N3W) XP® Rabbit mAb Expand Image
Flow cytometric analysis of live DU 145 cells (blue) and RPMI 8226 cells (green) using BST2 (E4N3W) XP® Rabbit mAb (solid lines) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed lines). Anti-rabbit IgG (H+L), F(ab')₂ Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.