Revision 1

#59187Store at -20C

1 Kit

(6 x 20 microliters)

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.
Product Includes Product # Quantity Mol. Wt Isotype/Source
Beclin-1 (D40C5) Rabbit mAb 3495 20 µl 60 kDa Rabbit IgG
PI3 Kinase Class III (D9A5) Rabbit mAb 4263 20 µl 100 kDa Rabbit 
PIK3R4 Antibody 14580 20 µl 153 kDa Rabbit 
Atg14 (D1A1N) Rabbit mAb 96752 20 µl 65 kDa Rabbit IgG
UVRAG (D2Q1Z) Rabbit mAb 13115 20 µl 90 kDa Rabbit IgG
Rubicon (D9F7) Rabbit mAb 8465 20 µl 130 kDa Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl Goat 

Please visit cellsignal.com for individual component applications, species cross-reactivity, dilutions, protocols, and additional product information.

Description

The Beclin-1 Complex Antibody Sampler Kit provides an economical means of detecting proteins that are part of the Beclin-1 complexes. The kit includes enough antibodies to perform two western blot experiments with each primary antibody.

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.

Background

A number of studies have identified distinct complexes involving Beclin-1 and PI3K Kinase Class III with specific roles in autophagy and vesicle trafficking (1,2). These complexes commonly contain Beclin-1, PI3KC3/VSP34, and PIK3R4/VPS15 and function to catalyze the phosphorylation of phosphatidylinositol at the D3 position, producing phosphatidylinositol-3-phosphate. Specificity of PI3KC3 activity is regulated by additional binding partners. Complex 1 contains Atg14 which is required for early stages of autophagosome nucleation (3,4). Complex 2 lacks Atg14, but instead contains UVRAG, and is important for autophagosome maturation and endocytic trafficking (4-6). A third complex, containing both UVRAG and Rubicon, negatively regulates canonical autophagy (7,8). Importantly, this complex containing Rubicon is critical for a related process of LC3-associated phagocytosis (LAP) in which extracellular pathogens binding to cell surface receptors are engulfed by a single membrane phagosome and degraded by the lysosome (9,10).

  1. Levine, B. and Kroemer, G. (2019) Cell 176, 11-42.
  2. Mei, Y. et al. (2016) Protein Sci 25, 1767-85.
  3. Sun, Q. et al. (2008) Proc Natl Acad Sci U S A 105, 19211-6.
  4. Itakura, E. et al. (2008) Mol Biol Cell 19, 5360-72.
  5. Liang, C. et al. (2006) Nat Cell Biol 8, 688-99.
  6. Liang, C. et al. (2008) Nat Cell Biol 10, 776-87.
  7. Matsunaga, K. et al. (2009) Nat Cell Biol 11, 385-96.
  8. Zhong, Y. et al. (2009) Nat Cell Biol 11, 468-76.
  9. Martinez, J. et al. (2015) Nat Cell Biol 17, 893-906.
  10. Heckmann, B.L. and Green, D.R. (2019) J Cell Sci 132(5). pii: jcs222984. doi: 10.1242/jcs.222984.

Background References

    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.

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