PathScan® Phospho-Bcr-Abl (Tyr177) Sandwich ELISA Kit #7950
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Inquiry Info. # 7950
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Supporting Data
| REACTIVITY | H |
Application Key:
- ELISA-ELISA
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Description
PathScan® Phospho-Bcr-Abl (Tyr177) Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of Bcr-Abl protein phosphorylated at Tyr177 of Bcr. A c-Abl mouse mAb has been coated on the microwells. After incubation with cell lysates, Bcr-Abl and c-Abl protein (phospho and nonphospho) is captured by the coated antibody. Following extensive washing, a Phospho-Bcr (Tyr177) rabbit detection antibody is added to detect captured phospho-Bcr-Abl protein. Anti-rabbit IgG, HRP-linked antibody is then used to recognize the bound detection antibody. HRP substrate TMB is added to develop color. The magnitude of the absorbance for this developed color is proportional to the quantity of Bcr-Abl protein phosphorylated at Tyr177.
Antibodies in kit are custom formulations specific to kit.
Antibodies in kit are custom formulations specific to kit.
Protocol
Specificity / Sensitivity
PathScan® Phospho-Bcr-Abl (Tyr177) Sandwich ELISA Kit #7950 detects endogenous levels of Bcr-Abl protein when phosphorylated at Tyr177 in human cells, as shown in Figure 1. The kit sensitivity is shown in Figure 2. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Species Reactivity:
Human
Background
The Bcr gene was orginally identified by its presence in the chimeric Bcr-Abl oncogene (1). The amino-terminal region of Bcr contains an oligomerization domain, a serine/threonine kinase domain, and a region that binds SH2 domains. The middle of the protein has a PH domain and a region of sequence similarity to the guanine nucleotide exchange factors for the Rho family of GTP binding proteins. The carboxy-terminal region may be involved in a GTPase activating function for the small GTP-binding protein Rac (2,3). The function of wild type Bcr in cells remains unclear. PDGF receptor may use Bcr as a downstream signaling mediator (4). Research studies have shown that the Bcr-Abl fusion results in production of a constitutively active tyrosine kinase, which causes chronic myelogenous leukemia (CML) (5). Tyr177 of Bcr is phosphorylated in the Bcr-Abl fusion protein, which plays an important role in transforming the activity of Bcr-Abl (6). Phosphorylated Tyr177 provides a docking site for Gab2 and GRB2 (7,8).
- Groffen, J. et al. (1984) Cell 36, 93-99.
- Maru, Y. et al. (1991) Cell 67, 459-468.
- Che, W. et al. (2001) Circulation 104, 1399-1406.
- Abe, J. I. et al. (2001) Ann. N.Y. Acad. Sci. 947, 341-343.
- Voncken, J. W. et al. (1995) Cell 80, 719-728.
- He, Y. et al. (2002) Blood 99, 2957-2968.
- Sattler, M. et al. (2002) Cancer Cell 1, 479-492.
- Warmuth, M. et al. (1995) J. Biol. Chem. 272, 33260-33270.
Alternate Names
abl; bcr; bcr/abl; cell based assay; cell-based assay; sandwich elisa; screening
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