Genetic Strategies: Western Blot: RB1 Antibody (172C1094) - (cleaved) [NB100-56598] - Western blot shows lysates of HeLa human cervical epithelial carcinoma parental cell line and RB-1 knockout (KO) HeLa cell ...read more
Western Blot: cleaved Retinoblastoma 1 Antibody (172C1094) [NB100-56598] - Analysis in HL60 cells were treated with camptothecin for 24 hours.
Immunohistochemistry: cleaved Retinoblastoma 1 Antibody (172C1094) [NB100-56598] - Analysis in sections of primary human breast tumors. Image courtesy of Dr. Macleod, The Ben May Institute for Cancer Research, and The ...read more
A synthetic peptide corresponding to a region of the caspase-3-induced cleavage site of human Rb was used as immunogen.
Specificity
The antibody recognizes cleaved Rb (DRb-p70). The antibody does not recognize full-length Rb. In camptothecin treated HL60, an ~68 kDa band is observed. DRb-p70 exists in vivo as an N-terminally truncated form of Rb (Liu et al.). DRb-p70 is thought to be the product of alternative translation and is expressed in primary myeloid cells in fetal liver, bone marrow and spleen. DRb-p70 is also specifically expressed in tumor-associated macrophages (TAMs). TAMs are an important targets of cancer therapy. DRb-p70 is a marker of TAMs, and maybe useful for identifying tumors with macrophage infiltration (Liu et al, 2005).
Isotype
IgG1
Clonality
Monoclonal
Host
Mouse
Gene
RB1
Purity
Protein G purified
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Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
Buffer
PBS containing 0.05% BSA
Preservative
0.05% Sodium Azide
Concentration
0.5 mg/ml
Purity
Protein G purified
Alternate Names for RB1 Antibody (172C1094) - (cleaved)
OSRC
osteosarcoma
p105-Rb
pp110
pRb
RB
RB1
retinoblastoma 1
retinoblastoma suspectibility protein
retinoblastoma-associated protein
Background
The retinoblastoma gene product (Rb) is a tumor suppressor protein and acts as cell cycle regulator. Recently, Rb has been shown to play a role in apoptosis. During apoptosis, Rb is subjected to cleavage by caspase-3 like protease. Caspase-3 cleaves Rb into 48 and 68kDa fragments. Cleavage of Rb would make it functionally inactive, causing release of E2F-1. The E2F-1 then may promote apoptosis.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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