Cell Signaling Technology

Product Pathways - Vesicle Trafficking

CHMP2B (D4G3K) Rabbit mAb #76173

No. Size Price
76173S 100 µl ( 10 western blots ) ¥3,250.00 现货查询 购买询价 防伪查询
76173 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Human,Mouse,Rat, Endogenous 28 Rabbit IgG
IP 1:100

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting, IP=Immunoprecipitation,

Specificity / Sensitivity

CHMP2B (D4G3K) Rabbit mAb recognizes endogenous levels of total CHMP2B protein.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Glu171 of human CHMP2B protein.

Western blot analysis of extracts from various cell lines using CHMP2B (D4G3K) Rabbit mAb.

Immunoprecipitation of CHMP2B protein from H226 cell extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is CHMP2B (D4G3K) Rabbit mAb. Western blot analysis was performed using CHMP2B (D4G3K) Rabbit mAb.


CHMP2B is a component of the ESCRT III (endosomal sorting required for transport complex III) complex (1, 2). The ESCRT system is composed of the ESCRT-0, -I, -II, and -III complexes, which function sequentially to direct the transport of ubiquitinated transmembrane proteins into the intralumenal vesicles (ILVs), which will eventually mature into multivesicular bodies (MVBs). CHMP2B is a homolog of yeast Vps2, which functions in the ESCRT-II complex to change the initial spiral-structure of snf7 into membrane-sculpting helices for the final pinch off process (3). CHMP2B probably functions similarly in mammalian cells. Research studies show that manipulation of the ESCRT-III complex leads to accumulation of CHMP2B at the plasma membrane and overexpressed CHMP2B polymerizes into a tight helical structure that deforms the shape of associated plasma membrane (4).

Research studies have shown that mutation of CHMP2B is associated with frontotemporal dementia, (5, 6). Studies have further shown that the dysfunction of mutant CHMP2B expression may disrupts the normal endo-autophagosome and endo-lysosome pathways and lead to neurodegenerative diseases (6-9).

  1. McCullough, J. et al. (2013) Annu Rev Biochem 82, 663-92.
  2. Henne, W.M. et al. (2013) Cold Spring Harb Perspect Biol 5, (9).
  3. Henne, W.M. et al. (2012) Cell 151, 356-71.
  4. Bodon, G. et al. (2011) J Biol Chem 286, 40276-86.
  5. Skibinski, G. et al. (2005) Nat Genet 37, 806-8.
  6. Lee, J.A. et al. (2007) Curr Biol 17, 1561-7.
  7. Filimonenko, M. et al. (2007) J Cell Biol 179, 485-500.
  8. Han, J.H. et al. (2012) Biochem Biophys Res Commun 421, 544-9.
  9. Urwin, H. et al. (2010) Hum Mol Genet 19, 2228-38.

Application References

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