This Mouse Monoclonal antibody specifically detects Retinoblastoma 1 in ICS. It exhibits reactivity toward Human, Mouse and Ratand has been mentioned in 1 publication.
RB1
Reactivity: Human
WB, IHC
Host: Rabbit
Monoclonal
unconjugated
Sample Volume
20 μL
Restrictions
For Research Use only
Buffer
Aqueous buffered solution containing BSA and ≤0.09 % sodium azide.
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C
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.
Cobrinik: "Pocket proteins and cell cycle control." in: Oncogene, Vol. 24, Issue 17, pp. 2796-809, (2005) (PubMed).
Target
Retinoblastoma 1 (RB1)
Alternative Name
Rb
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.