Retinoblastoma 1 antibody (pSer780)
Quick Overview for Retinoblastoma 1 antibody (pSer780) (ABIN1177159)
Target
See all Retinoblastoma 1 (RB1) AntibodiesReactivity
Host
Clonality
Conjugate
Application
Clone
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Binding Specificity
- pSer780
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Brand
- BD Phosflow™
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Purification
- The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
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Immunogen
- Phosphorylated Human Rb Peptide
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Isotype
- IgG1 kappa
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Sample Volume
- 20 μL
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Restrictions
- For Research Use only
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Buffer
- Aqueous buffered solution containing BSA and ≤0.09 % sodium azide.
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Preservative
- Sodium azide
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Precaution of Use
- This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
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Storage
- 4 °C
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Storage Comment
- The antibody was conjugated with R-PE under optimum conditions, and unconjugated antibody and free PE were removed by gel filtration chromatography. Store undiluted at 4° C and protected from prolonged exposure to light. Do not freeze.
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: "Pocket proteins and cell cycle control." in: Oncogene, Vol. 24, Issue 17, pp. 2796-809, (2005) (PubMed).
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- Retinoblastoma 1 (RB1)
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Alternative Name
- Rb
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Background
- The retinoblastoma gene product (Rb) is well known as a tumor suppressor and is either absent or mutated in many human tumors. Retrovirus-mediated gene transfer of the wild-type Rb gene into several Rb mutant neoplastic cell lines suppresses their tumorgenicity. Rb is a 110-kDa nuclear phosphoprotein that undergoes differential phosphorylation during the cell cycle. During G1 phase, Rb is predominantly in a hypophosphorylated state. It becomes increasingly phosphorylated throughout the cell cycle until late mitosis, when substantial dephosphorylation occurs. Hypophosphorylated Rb interacts with a number of cellular proteins including the E2F transcription factor, several cyclins, RBP-1, RBP-2, c-Abl, c-myc, N-myc, and p46. Phosphorylation of Rb at various sites, by Cyclin-dependent protein kinases, inhibits the binding of Rb to these proteins. Rb is thought to mediate its effects, in part, via the repression of genes required for proliferation. For example, Rb is specifically recruited to promoters containing E2F sites and actively represses E2F mediated transcription. Rb also stimulates the activity of other transcription factors, although the mechanisms are less clearly defined. Thus, Rb appears to regulate transcription in its aim to control cell growth. The J146-35 monoclonal antibody recognizes Rb phosphorylated at serine 780 (pS780), which affects Rb binding to E2F. The orthologous phosphorylation sites in mouse and rat Rb are serines 773 and 751, respectively.
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Pathways
- Cell Division Cycle, Intracellular Steroid Hormone Receptor Signaling Pathway, Mitotic G1-G1/S Phases, DNA Replication, Maintenance of Protein Location, Synthesis of DNA, Autophagy
Target
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