R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.
Phospho-Rb (Ser807/811) (D20B12) XP® Rabbit mAb (Pacific Blue™ Conjugate) #75864
Filter:
- F
Supporting Data
REACTIVITY | H M R Mk |
SENSITIVITY | Endogenous |
MW (kDa) | |
Source/Isotype | Rabbit IgG |
Application Key:
- F-Flow Cytometry
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
- Mk-Monkey
Product Information
Product Description
This Cell Signaling Technology® antibody is conjugated to Pacific Blue™ fluorescent dye under optimal conditions and tested in-house for direct flow cytometric analysis in human cells. This antibody conjugate is expected to exhibit the same species cross-reactivity as the unconjugated Phospho-Rb (Ser807/811) (D20B12) XP® Rabbit mAb #8516.
Product Usage Information
Application | Dilution |
---|---|
Flow Cytometry (Fixed/Permeabilized) | 1:50 |
Storage
Supplied in PBS (pH 7.2), less than 0.1% sodium azide, and 2 mg/mL BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.
Protocol
Specificity / Sensitivity
Phospho-Rb (Ser807/811) (D20B12) XP® Rabbit mAb (Pacific Blue™ Conjugate) recognizes endogenous levels of Rb protein only when phosphorylated at Ser807, Ser811, or at both sites. This antibody does not cross-react with Rb phosphorylated at Ser608.
Species Reactivity:
Human, Mouse, Rat, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser807/811 of human Rb protein.
Background
The retinoblastoma tumor suppressor protein Rb regulates cell proliferation by controlling progression through the restriction point within the G1-phase of the cell cycle (1). Rb has three functionally distinct binding domains and interacts with critical regulatory proteins including the E2F family of transcription factors, c-Abl tyrosine kinase, and proteins with a conserved LXCXE motif (2-4). Cell cycle-dependent phosphorylation by a CDK inhibits Rb target binding and allows cell cycle progression (5). Rb inactivation and subsequent cell cycle progression likely requires an initial phosphorylation by cyclin D-CDK4/6 followed by cyclin E-CDK2 phosphorylation (6). Specificity of different CDK/cyclin complexes has been observed in vitro (6-8) and cyclin D1 is required for Ser780 phosphorylation in vivo (9).
- Sherr, C.J. (1996) Science 274, 1672-7.
- Nevins, J.R. (1992) Science 258, 424-9.
- Welch, P.J. and Wang, J.Y. (1993) Cell 75, 779-90.
- Hu, Q.J. et al. (1990) EMBO J 9, 1147-55.
- Knudsen, E.S. and Wang, J.Y. (1997) Mol Cell Biol 17, 5771-83.
- Lundberg, A.S. and Weinberg, R.A. (1998) Mol Cell Biol 18, 753-61.
- Connell-Crowley, L. et al. (1997) Mol Biol Cell 8, 287-301.
- Kitagawa, M. et al. (1996) EMBO J 15, 7060-9.
- Geng, Y. et al. (2001) Proc Natl Acad Sci USA 98, 194-9.
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Pacific Blue is a trademark of Life Technologies Corporation.
XP is a registered trademark of Cell Signaling Technology, Inc.
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