Polyclonal Antibody to Rb (Ab-807)
Figure 1: Western blot analysis of extracts from K562 cells using Rb (Ab-807) Antibody 35-1461 .
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Format : | Purified |
Amount : | 100 µl |
Isotype : | Rabbit IgG |
Content : | Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. |
Storage condition : | Store the antibody at 4°C, stable for 6 months. For long-term storage, store at -20°C. Avoid repeated freeze and thaw cycles. |
Rb operates in the midst of the cell cycle clock apparatus. Its main role is to act as a signal transducer connecting the cell cycle clock with the transcriptional machinery (Ref.1). It plays an important role in the Rb/ E2F pathway in cell proliferation, cell fate determination, and cancer (Ref.2). Cellular senescence is a stable form of cell cycle arrest that limits proliferation of damaged cells and act as a natural barrier to cancer progression. A distinct heterochromatic structure that accumulates in senescent human fibroblasts, designated as SAHF (Senescence-Associated Heterochromatic Foci). SAHF formation coincides with recruitment of heterochromatin proteins and the Rb protein to E2F-responsive promoters and is associated with the stable repression of E2F target genes. Both SAHF formation and the silencing of E2F target genes depended on the integrity of the Rb pathway and do not occur in reversibly arrested cells (Ref.3). Rb activates transcription of the c-Jun gene through the SP1-binding site within the c-Jun promoter
Predicted MW: 110kd, Western blotting: 1:500~1:1000, Immunohistochemistry: 1:50~1:100
For Research Use Only. Not for use in diagnostic/therapeutics procedures.
Subcellular location: | Nucleus |
Post transnational modification: | Acetylation at Lys-873 and Lys-874 regulates subcellular localization, at least during keratinocytes differentiation. |
Tissue Specificity: | Expressed in the retina. |
BioGrid: | 111860. 243 interactions. |
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