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Target

Host

Species Reactivity

Species Reactivity

Conjugate

Conjugate

RB1 Monoclonal antibody, PBS Only

RB1 Monoclonal Antibody for WB, IHC, IF/ICC, ELISA

Host / Isotype

Mouse / IgG2a

Reactivity

Human

Applications

WB, IHC, IF/ICC, ELISA

Conjugate

Unconjugated

CloneNo.

1A2A6

Cat no : 67521-1-PBS

Synonyms

OSRC, p105 Rb, pp110, pRb, RB, RB1, retinoblastoma 1

Validation Data Gallery

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  • Western Blot (WB) analysis of Jurkat cells using RB1 Monoclonal antibody (67521-1-Ig)

    WB analysis of Jurkat using 67521-1-Ig (same clone as 67521-1-PBS)

    Jurkat cells were subjected to SDS PAGE followed by western blot with 67521-1-Ig (RB1 antibody) at dilution of 1:3000 incubated at room temperature for 1.5 hours. This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Western Blot (WB) analysis of K-562 cells using RB1 Monoclonal antibody (67521-1-Ig)

    WB analysis of K-562 using 67521-1-Ig (same clone as 67521-1-PBS)

    K-562 cells were subjected to SDS PAGE followed by western blot with 67521-1-Ig (RB1 antibody) at dilution of 1:3000 incubated at room temperature for 1.5 hours. This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Western Blot (WB) analysis of MCF-7 cells using RB1 Monoclonal antibody (67521-1-Ig)

    WB analysis of MCF-7 using 67521-1-Ig (same clone as 67521-1-PBS)

    MCF-7 cells were subjected to SDS PAGE followed by western blot with 67521-1-Ig (RB1 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours. This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Western Blot (WB) analysis of Jurkat cells using RB1 Monoclonal antibody (67521-1-Ig)

    WB analysis of Jurkat using 67521-1-Ig (same clone as 67521-1-PBS)

    Jurkat cells were subjected to SDS PAGE followed by western blot with 67521-1-Ig (RB1 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours. This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Western Blot (WB) analysis of K-562 cells using RB1 Monoclonal antibody (67521-1-Ig)

    WB analysis of K-562 using 67521-1-Ig (same clone as 67521-1-PBS)

    K-562 cells were subjected to SDS PAGE followed by western blot with 67521-1-Ig (RB1 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours. This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Western Blot (WB) analysis of HL-60 cells using RB1 Monoclonal antibody (67521-1-Ig)

    WB analysis of HL-60 using 67521-1-Ig (same clone as 67521-1-PBS)

    HL-60 cells were subjected to SDS PAGE followed by western blot with 67521-1-Ig (RB1 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours. This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Western Blot (WB) analysis of TF-1 cells using RB1 Monoclonal antibody (67521-1-Ig)

    WB analysis of TF-1 using 67521-1-Ig (same clone as 67521-1-PBS)

    TF-1 cells were subjected to SDS PAGE followed by western blot with 67521-1-Ig (RB1 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours. This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Immunohistochemistry (IHC) staining of Insulinoma tissue using RB1 Monoclonal antibody (67521-1-Ig)

    IHC staining of Insulinoma using 67521-1-Ig (same clone as 67521-1-PBS)

    Immunohistochemical analysis of paraffin-embedded Insulinoma tissue slide using 67521-1-Ig (RB1 antibody) at dilution of 1:1000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0). This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Immunohistochemistry (IHC) staining of Insulinoma tissue using RB1 Monoclonal antibody (67521-1-Ig)

    IHC staining of Insulinoma using 67521-1-Ig (same clone as 67521-1-PBS)

    Immunohistochemical analysis of paraffin-embedded Insulinoma tissue slide using 67521-1-Ig (RB1 antibody) at dilution of 1:1000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0). This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Immunofluorescence (IF) / fluorescent staining of SH-SY5Y cells using RB1 Monoclonal antibody (67521-1-Ig)

    IF Staining of SH-SY5Y using 67521-1-Ig (same clone as 67521-1-PBS)

    Immunofluorescent analysis of (4% PFA) fixed SH-SY5Y cells using RB1 antibody (67521-1-Ig, Clone: 1A2A6 ) at dilution of 1:400 and CoraLite®488-Conjugated Goat Anti-Mouse IgG(H+L). This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

  • Immunofluorescence (IF) / fluorescent staining of U2OS cells using RB1 Monoclonal antibody (67521-1-Ig)

    IF Staining of U2OS using 67521-1-Ig (same clone as 67521-1-PBS)

    Immunofluorescent analysis of (4% PFA) fixed U2OS cells using RB1 antibody (67521-1-Ig, Clone: 1A2A6 ) at dilution of 1:800 and CoraLite®488-Conjugated Goat Anti-Mouse IgG(H+L), CL594-Phalloidin (red). This data was developed using the same antibody clone with 67521-1-PBS in a different storage buffer formulation.

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Tested Applications

Recommended dilution

ApplicationDilution
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Product Information

67521-1-PBS targets RB1 in WB, IHC, IF/ICC, ELISA applications and shows reactivity with Human samples.

Tested Reactivity Human
Host / Isotype Mouse / IgG2a
Class Monoclonal
Type Antibody
Immunogen RB1 fusion protein Ag22578 相同性解析による交差性が予測される生物種
Full Name retinoblastoma 1
Calculated molecular weight 928 aa, 106 kDa
Observed molecular weight 110 kDa
GenBank accession numberBC039060
Gene symbol RB1
Gene ID (NCBI) 5925
Conjugate Unconjugated
Form Liquid
Purification MethodProtein A purification
Storage Buffer PBS only
Storage ConditionsStore at -80°C.

Background Information

RB1, also named as pp110, pRb and p105 Rb, belongs to the retinoblastoma protein (RB) family. It is a key regulator of entry into cell division that acts as a tumor suppressor. RB1 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. It is directly involved in heterochromatin formation by maintaining overall chromatin structure and, in particular, that of constitutive heterochromatin by stabilizing histone methylation. It recruits and targets histone methyltransferases SUV39H1, SUV420H1 and SUV420H2, leading to epigenetic transcriptional repression. RB1 controls histone H4 'Lys-20' trimethylation and inhibits the intrinsic kinase activity of TAF1. It 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. 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.