Rabbit Recombinant Monoclonal RB phospho S780 antibody. Suitable for IHC-P, Dot, WB and reacts with Human, Synthetic peptide samples. Cited in 17 publications.
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
IHC-P | ICC/IF | IP | Flow Cyt | Dot | WB | |
---|---|---|---|---|---|---|
Human | Tested | Not recommended | Not recommended | Not recommended | Expected | Tested |
Synthetic peptide | Not recommended | Not recommended | Not recommended | Not recommended | Tested | Not recommended |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/100 | Notes Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Synthetic peptide | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/10000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Synthetic peptide | Dilution info - | Notes - |
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Tumor suppressor that is a key regulator of the G1/S transition of the cell cycle (PubMed:10499802). The hypophosphorylated form binds transcription regulators of the E2F family, preventing transcription of E2F-responsive genes (PubMed:10499802). Both physically blocks E2Fs transactivating domain and recruits chromatin-modifying enzymes that actively repress transcription (PubMed:10499802). Cyclin and CDK-dependent phosphorylation of RB1 induces its dissociation from E2Fs, thereby activating transcription of E2F responsive genes and triggering entry into S phase (PubMed:10499802). RB1 also promotes the G0-G1 transition upon phosphorylation and activation by CDK3/cyclin-C (PubMed:15084261). 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, KMT5B and KMT5C, 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). (Microbial infection) 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.
Retinoblastoma-associated protein, p105-Rb, p110-RB1, pRb, pp110, Rb, RB1
Rabbit Recombinant Monoclonal RB phospho S780 antibody. Suitable for IHC-P, Dot, WB and reacts with Human, Synthetic peptide samples. Cited in 17 publications.
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
Retinoblastoma protein (Rb) also known as pRb is an important regulatory protein with a molecular weight of approximately 110 kDa. It is mainly expressed in the nucleus of cells. Rb functions as a tumor suppressor by controlling the cell cycle progression from G1 to S phase. Rb becomes active when it is dephosphorylated allowing it to bind and inhibit E2F transcription factors consequently preventing the transcription of genes essential for S phase entry.
Retinoblastoma protein influences cellular proliferation differentiation and apoptosis. It acts within a larger protein complex modulating various cellular responses. When functional Rb halts uncontrolled cell division important for maintaining normal tissue homeostasis. In its phosphorylated state known as phospho-Rb or phospho-Rb E182 it loses its regulatory capabilities which can lead to unrestrained cell cycle progression.
Several involve the retinoblastoma protein. One key pathway is the p53 pathway which Rb interacts with to influence cellular outcomes like cell-cycle arrest and apoptosis. Rb cooperates with proteins like p21 to implement these processes. Additionally it is involved in the cyclin D-dependent kinase 4 (CDK4) pathway which modulates its phosphorylation state influencing binding interactions and cell cycle control.
Dysregulation of retinoblastoma protein is commonly associated with cancer particularly retinoblastoma and breast cancer. In retinoblastoma mutations in the Rb gene directly lead to uncontrolled cell proliferation due to the absence of functional Rb protein. Additionally Rb's connection to the E2F family of transcription factors can become disrupted contributing to oncogenesis in other cancers.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
Immunohistochemical analysis of paraffin-embedded Human colon tissue labeling Rb (phospho S780) with ab173289 at 1/100 dilution,followed by Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/500 dilution.
Nucleus staining on normal human colon.
Counter stained with Hematoxylin.
Secondary antibody only control:Used PBS instead of primary antibody,secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) ab97051 at 1/500 dilution.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
Blocking and diluting buffer and concentration: 5% NFDM/TBST.
All lanes: Western blot - Anti-Rb (phospho S780) antibody [EPR182(N)] (ab173289) at 1/50000 dilution
Lane 1: Jurkat (Human T cell leukemia T lymphocyte) serum starved for 44 h. Whole cell lysates at 15 µg
Lane 2: Jurkat (Human T cell leukemia T lymphocyte) serum starved for 24 h. Then 10% FBS incubated for 20 h. Whole cell lysates at 15 µg
Lane 3: Jurkat (Human T cell leukemia T lymphocyte) serum starved for 24 h. Then 10% FBS incubated for 20 h. Whole cell lysates Then the membrane was incubated with phosphatase. at 15 µg
All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/20000 dilution
Predicted band size: 106 kDa
Observed band size: 106 kDa
Exposure time: 1min
Blocking/Dilution buffer:5% NFDM/TBST
Exposure time:1 minute
All lanes: Western blot - Anti-Rb (phospho S780) antibody [EPR182(N)] (ab173289) at 1/20000 dilution
Lane 1: K562 (Human chronic myelogenous leukemia cell line from bone marrow) whole cell lysate at 10 µg
Lane 2: K562(Human chronic myelogenous leukemia cell line from bone marrow) whole cell lysate, serum starved for 2 days at 10 µg
All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/50000 dilution
Predicted band size: 106 kDa
Blocking/Dilution buffer:NFDM/TBST
ab173289: anti- Rb (phospho S780);
Anti-Rb (phospho S807) antibody [EPR17732] ab184796: anti- Rb (phospho S807);
Anti-Rb antibody [EPR17512] ab181616: anti-Rb
All lanes: Western blot - Anti-Rb (phospho S780) antibody [EPR182(N)] (ab173289) at 1/5000 dilution
Lane 1: K562 (Human chronic myelogenous leukemia cell line from bone marrow) whole cell lysate at 10 µg
Lane 2: Calyculin A treated K562(Human chronic myelogenous leukemia cell line from bone marrow) whole cell lysate at 10 µg
All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/100000 dilution
Predicted band size: 106 kDa
Dot blot analysis of Rb (phospho S780) peptide (Lane 1),Rb(non-phospho) peptide (Lane 2) with ab173289 at a dilution of 1/1000.Goat Anti-Rabbit IgG H&L (HRP) ab97051 (Peroxidase conjugated goat anti-rabbit IgG (H+L) was used as the secondary antibody at a dilution of 1/1000.
Blocking and dilution buffer:5% NFDM/TBST.
Exposure time:3 minutes
Immunohistochemical analysis of paraffin-embedded Lung squamous cell carcinoma labeling Rb (phospho S780) with ab173289 at 1/100 dilution,followed by Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/500 dilution.
Nucleus staining on tumor cells of lung squamous cell carcinoma.
Counter stained with Hematoxylin.
Secondary antibody only control:Used PBS instead of primary antibody,secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) ab97051 at 1/500 dilution.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
All lanes: Western blot - Anti-Rb (phospho S780) antibody [EPR182(N)] (ab173289) at 1/1000 dilution
Lane 1: Jurkat cell lysate at 10 µg
Lane 2: Jurkat cell lysate treated with Lambda Phosphatase at 10 µg
Predicted band size: 106 kDa
Immunohistochemical analysis of paraffin-embedded Human thyroid gland carcinoma tissue labeling Rb with ab173289 at 1/50 dilution.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
Immunohistochemical analysis of paraffin-embedded Human testis tissue labeling Rb with ab173289 at 1/50 dilution.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
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