We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn about our cookie policy.
Cell Signaling Phospho-Beclin-1 (Ser93) (D9a5g) Rabbit mAb
List Price $415.00 Your Price $415.00
Cell Signaling Phospho-Beclin-1 (Ser93) (D9a5g) Rabbit mAb - CSSPQ (Additional S&H or Hazmat Fees May Apply)
NETA PART: CSSPQ-14717S
MFG.PART: 14717S
UNSPSC: 41116133
Manufacturer: Cell Signaling
| Size | 100 µl |
| Reactivity | H |
| Sensitivity | Endogenous |
| Molecular Weight (kDa) | 60 |
| Source/Isotype | Rabbit IgG |
| Application/Dilution | {Western Blotting: 1:1000, Immunoprecipitation: 1:50} |
| 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 | Phospho-Beclin-1 (Ser93) (D9A5G) Rabbit mAb recognizes endogenous levels of Beclin-1 protein only when phosphorylated at Ser93. This antibody recognizes single phosphorylation of Ser93 to a greater extent than dual phosphorylation at Ser93 and Ser96. This antibody may also weakly detect an unidentified band at approximately 70 kDa. |
| Species Reactivity | Human |
| Source/Purification | Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser93 of human Beclin-1 protein (Ser91 in mouse). |
| Background | Autophagy is a catabolic process for the autophagosomic-lysosomal degradation of proteins activated in response to nutrient deprivation and in neurodegenerative conditions (1). One of the proteins critical to this process is Beclin-1, the mammalian orthologue of the yeast autophagy protein Apg6/Vps30 (2). Beclin-1 can complement defects in yeast autophagy caused by loss of Apg6 and can also stimulate autophagy when overexpressed in mammalian cells (3). Mammalian Beclin-1 was originally isolated in a yeast two-hybrid screen for Bcl-2 interacting proteins and has been shown to interact with Bcl-2 and Bcl-xL, but not with Bax or Bak (4). While Beclin-1 is generally ubiquitously expressed, research studies have shown it is monoallelically deleted in 40-75% of sporadic human breast and ovarian cancers (5). Beclin-1 is localized within cytoplasmic structures including the mitochondria, although overexpression of Beclin-1 reveals some nuclear staining and CRM1-dependent nuclear export (6). Investigators have demonstrated that Beclin-1-/- mice die early in embryogenesis and Beclin-1-/+ mice have a high incidence of spontaneous tumors. Stem cells from the null mice demonstrate an altered autophagic response, although responses to apoptosis appeared normal (7). Researchers have also found that overexpression of Beclin-1 in virally infected neurons in vivo resulted in significant protection against Sindbis virus-induced disease and neuronal apoptosis (4).To induce autophagy, AMP-activated protein kinase (AMPK) directly phosphorylates Beclin-1 at conserved Ser93 and Ser96 residues in human, which correspond to murine Ser91 and Ser94 (8). |
| SKU | CSSPQ-14717S |
|---|---|
| Supplier Part Number | 14717S |
| UM | EA |
| UNSPSC | 41116133 |
| Manufacturer | Cell Signaling |
| MSDS URL | Click here |
| Temperature | -20C |
| CountryOfOrigin | United States |
| ProductLine | CSSPQ |
| Qty | 1 |
| MinOrderQty | 1 |
| Weight | 7.000000 |
| Lead Time | 5 |
| Hazardous | N |
| Energy Star | No |
| Green | No |
| Controlled | N |