Revision 3

#13174Store 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, W-S

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

22, 24, 35

Source/Isotype:

Rabbit IgG

UniProt ID:

#P21926

Entrez-Gene Id:

928

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Simple Western™ 1:50 - 1:250

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.

Specificity / Sensitivity

CD9 (D8O1A) Rabbit mAb recognizes endogenous levels of total CD9 protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val178 of human CD9 protein.

Background

The CD9 antigen belongs to the tetraspanin family of cell surface glycoproteins, and is characterized by four transmembrane domains, one short extracellular domain (ECL1), and one long extracellular domain (ECL2). Tetraspanins interact with a variety of cell surface proteins and intracellular signaling molecules in specialized tetraspanin-enriched microdomains (TEMs), where they mediate a range of processes including adhesion, motility, membrane organization, and signal transduction (1). Research studies demonstrate that CD9 expression on the egg is required for gamete fusion during fertilization (2-4). CD9 was also shown to play a role in dendritic cell migration, megakaryocyte differentiation, and homing of cord blood CD34+ hematopoietic progenitors to the bone marrow (5-7). In addition, downregulation of CD9 expression is associated with poor prognosis and progression of several types of cancer (8-10). Additional research identified CD9 as an abundant component of exosomes, and may play some role in the fusion of these secreted membrane vesicles with recipient cells (11).

  1. Hemler, M.E. (2005) Nat Rev Mol Cell Biol 6, 801-11.
  2. Le Naour, F. et al. (2000) Science 287, 319-21.
  3. Miyado, K. et al. (2000) Science 287, 321-4.
  4. Kaji, K. et al. (2000) Nat Genet 24, 279-82.
  5. Mantegazza, A.R. et al. (2004) Blood 104, 1183-90.
  6. Clay, D. et al. (2001) Blood 97, 1982-9.
  7. Leung, K.T. et al. (2011) Blood 117, 1840-50.
  8. Miyake, M. et al. (1995) Cancer Res 55, 4127-31.
  9. Higashiyama, M. et al. (1995) Cancer Res 55, 6040-4.
  10. Uchida, S. et al. (1999) Br J Cancer 79, 1168-73.
  11. Théry, C. et al. (1999) J Cell Biol 147, 599-610.

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 W-S: Simple Western™

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.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

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