> Antigen, Antibodies, ELISA, Western Blot > Primary Antibody > Polyclonal Antibodies > RB1 Antibody (C-term)Brand |
Leading Biology | Catalog Number |
APR06099G |
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 (C-term).
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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 |
858-886 aa
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Target |
This RB1 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 858-886 amino acids from the C-terminal region of 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 |
RB1 is a negative regulator of the cell cycle and was the first tumor suppressor gene found. This protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1.
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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, IHC-P, FC, E
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Dilution |
WB~~1:1000
IHC-P~~1:50~100
FC~~1:10~50
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Images |
All lanes : Anti-RB1 Antibody (C-term) at 1:8000 dilution Lane 1: Hela whole cell lysate Lane 2: Jurkat whole cell lysate Lysates/proteins at 20 μg per lane. Secondary Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution. Predicted band size : 106 kDa Blocking/Dilution buffer: 5% NFDM/TBST.
Western blot analysis of RB1 Antibody (C-term) (Cat. APR06099G) in 293 cell line lysates (35ug/lane). RB1 (arrow) was detected using the purified Pab.(2ug/ml)
Formalin-fixed and paraffin-embedded human testis tissue reacted with RB1 Antibody (C-term), which was peroxidase-conjugated to the secondary antibody, followed by DAB staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated. |
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Specification |
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Quantity |
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Leading Biology Inc.
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Richmond, CA, 94806
Tel: 1-661-524(LBI)-0262
Email: info@leadingbiology.com
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