> Antigen, Antibodies, ELISA, Western Blot > Primary Antibody > Polyclonal Antibodies > RB1 Antibody (S608)Brand |
Leading Biology | Catalog Number |
APR05727G |
Product Type |
Polyclonal Antibodies | Field of Research |
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Product Overview |
We constantly strive to ensure we provide our customers with the best antibodies. As a result of this work we offer this antibody in purified format.
We are in the process of updating our datasheets. If you have any questions regarding this update, please feel free to contact our technical support team.
This product is a high quality RB1 Antibody (S608).
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Molecular Weight |
106159 Da
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Cellular Localization |
Antigen Cellular Localization:
Nucleus.
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Host |
Rabbit
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Species Reactivity |
Human
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Immunogen |
586-615 aa
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Target |
This RB1 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 586-615 amino acids from human RB1.
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Isotype |
Rabbit Ig
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GeneID |
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UniProt ID |
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Function |
Key regulator of entry into cell division that acts as a tumor suppressor. Promotes G0-G1 transition when phosphorylated by CDK3/cyclin-C. Acts as a transcription repressor of E2F1 target genes. The underphosphorylated, active form of RB1 interacts with E2F1 and represses its transcription activity, leading to cell cycle arrest. Directly involved in heterochromatin formation by maintaining overall chromatin structure and, in particular, that of constitutive heterochromatin by stabilizing histone methylation. Recruits and targets histone methyltransferases SUV39H1, SUV420H1 and SUV420H2, leading to epigenetic transcriptional repression. Controls histone H4 'Lys-20' trimethylation. Inhibits the intrinsic kinase activity of TAF1. Mediates transcriptional repression by SMARCA4/BRG1 by recruiting a histone deacetylase (HDAC) complex to the c-FOS promoter. In resting neurons, transcription of the c-FOS promoter is inhibited by BRG1-dependent recruitment of a phospho-RB1-HDAC1 repressor complex. Upon calcium influx, RB1 is dephosphorylated by calcineurin, which leads to release of the repressor complex (By similarity). In case of viral infections, interactions with SV40 large T antigen, HPV E7 protein or adenovirus E1A protein induce the disassembly of RB1-E2F1 complex thereby disrupting RB1's activity.
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Summary |
The retinoblastoma protein is a tumor suppressor protein that is dysfunctional in many types of cancer.[1] One highly studied function of pRb is to prevent excessive cell growth by inhibiting cell cycle progression until a cell is ready to divide. pRb belongs to the pocket protein family, whose members have a pocket for the functional binding of other proteins.[2][3] Should an oncogenic protein, such as those produced by cells infected by high-risk types of human papillomaviruses, bind and inactivate pRb, this can lead to cancer. Retinoblastoma (RB) is an embryonic malignant neoplasm of retinal origin. It almost always presents in early childhood and is often bilateral.
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Storage & Stability |
Store at +4°C short term. For long-term storage, aliquot and store at -20°C or below. Stable for 12 months at -20°C. Avoid repeated freeze-thaw cycles.
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Applications |
WB, IF, IHC-P, E
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Dilution |
WB~~1:1000
IF~~1:10~50
IHC-P~~1:10~50
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Images |
Rb Antibody (S608) (Cat. APR05727G) western blot analysis in Daudi,Raji cell line lysates (35ug/lane).This demonstrates the Rb antibody detected the Rb protein (arrow).
Confocal immunofluorescent analysis of RB1 Antibody (S608)( APR05727G) with MDA-MB435 cell followed by Alexa Fluor 488-conjugated goat anti-rabbit lgG (green).Actin filaments have been labeled with Alexa Fluor 555 phalloidin (red).DAPI was used to stain the cell nuclear (blue).
RB1 Antibody (S608) (Cat. APR05727G)immunohistochemistry analysis in formalin fixed and paraffin embedded human breast carcinoma followed by peroxidase conjugation of the secondary antibody and DAB staining.This data demonstrates the use of RB1 Antibody (S608) for immunohistochemistry. Clinical relevance has not been evaluated. |
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Specification |
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Quantity |
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Tel: 1-661-524(LBI)-0262
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