Anti-Rb (phospho S780) antibody (ab47763)
Key features and details
- Rabbit polyclonal to Rb (phospho S780)
- Suitable for: WB, IHC-P
- Reacts with: Human
- Isotype: IgG
Overview
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Product name
Anti-Rb (phospho S780) antibody
See all Rb primary antibodies -
Description
Rabbit polyclonal to Rb (phospho S780) -
Host species
Rabbit -
Specificity
This antibody detects Rb only when phosphorylated at Serine 780. -
Tested Applications & Species
See all applications and species dataApplication Species IHC-P HumanWB Human
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Immunogen
Synthetic peptide corresponding to Human Rb (phospho S780).
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7
Preservative: 0.02% Sodium azide
Constituents: 49% PBS, 50% Glycerol, 0.87% Sodium chloride
PBS Without Mg+2 and Ca+2 -
Concentration information loading... -
Purity
Immunogen affinity purified -
Purification notes
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site. -
Clonality
Polyclonal -
Isotype
IgG -
Research areas
Associated products
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Compatible Secondaries
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Isotype control
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Positive Controls
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Recombinant Protein
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab47763 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Guaranteed
Tested applications are guaranteed to work and covered by our Abpromise guarantee.
Predicted
Predicted to work for this combination of applications and species but not guaranteed.
Incompatible
Does not work for this combination of applications and species.
| Application | Species |
|---|---|
| IHC-P |
Human
|
| WB |
Human
|
| Application | Abreviews | Notes |
|---|---|---|
| WB | (1) |
1/500 - 1/1000. Detects a band of approximately 125 kDa (predicted molecular weight: 106 kDa).
|
| IHC-P |
1/50 - 1/100.
|
| Notes |
|---|
|
WB
1/500 - 1/1000. Detects a band of approximately 125 kDa (predicted molecular weight: 106 kDa). |
|
IHC-P
1/50 - 1/100. |
Target
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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, 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). 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. -
Tissue specificity
Expressed in the retina. -
Involvement in disease
Childhood cancer retinoblastoma
Bladder cancer
Osteogenic sarcoma -
Sequence similarities
Belongs to the retinoblastoma protein (RB) family. -
Domain
The Pocket domain binds to the threonine-phosphorylated domain C, thereby preventing interaction with heterodimeric E2F/DP transcription factor complexes. -
Post-translational
modificationsPhosphorylated by CDK6 and CDK4, and subsequently by CDK2 at Ser-567 in G1, thereby releasing E2F1 which is then able to activate cell growth. Dephosphorylated at the late M phase. SV40 large T antigen, HPV E7 and adenovirus E1A bind to the underphosphorylated, active form of pRb. Phosphorylation at Thr-821 and Thr-826 promotes interaction between the C-terminal domain C and the Pocket domain, and thereby inhibits interactions with heterodimeric E2F/DP transcription factor complexes. Dephosphorylated at Ser-795 by calcineruin upon calcium stimulation. CDK3/cyclin-C-mediated phosphorylation at Ser-807 and Ser-811 is required for G0-G1 transition. Phosphorylated by CDK1 and CDK2 upon TGFB1-mediated apoptosis.
N-terminus is methylated by METTL11A/NTM1 (By similarity). Monomethylation at Lys-810 by SMYD2 enhances phosphorylation at Ser-807 and Ser-811, and promotes cell cycle progression. Monomethylation at Lys-860 by SMYD2 promotes interaction with L3MBTL1.
Acetylation at Lys-873 and Lys-874 regulates subcellular localization, at least during keratinocytes differentiation. -
Cellular localization
Nucleus. - Information by UniProt
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Database links
- Entrez Gene: 5925 Human
- Omim: 614041 Human
- SwissProt: P06400 Human
- Unigene: 408528 Human
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Alternative names
- Exon 17 tumor GOS561 substitution mutation causes premature stop antibody
- GOS563 exon 17 substitution mutation causes premature stop antibody
- OSRC antibody
see all
Images
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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Rb (phospho S780) antibody (ab47763)
ab47763 at 1/50 dilution staining paraffin-embedded human breast carcinoma; left without and right with immunising peptide.
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Western blot - Anti-Rb (phospho S780) antibody (ab47763)All lanes : Anti-Rb (phospho S780) antibody (ab47763) at 1/500 dilution
Lane 1 : K562 cell extract treated with serum for 20 hours
Lane 2 : K562 cell extract
Predicted band size: 106 kDa
Typically 5-30ug of total protein was loaded per lane of the gel. -
Western blot - Anti-Rb (phospho S780) antibody (ab47763)Western blot analysis of extracts from K562 cells treated or untreated with serum using Rb antibody and ab47763.
Protocols
Datasheets and documents
References (29)
ab47763 has been referenced in 29 publications.
- Tu Q et al. A novel pancreatic cancer model originated from transformation of acinar cells in adult tree shrew, a primate-like animal. Dis Model Mech 12:N/A (2019). PubMed: 30910991
- Huang D et al. PIK3CA mutations contribute to fulvestrant resistance in ER-positive breast cancer. Am J Transl Res 11:6055-6065 (2019). PubMed: 31632573
- Butler MB et al. Rho kinase-dependent apical constriction counteracts M-phase apical expansion to enable mouse neural tube closure. J Cell Sci 132:N/A (2019). PubMed: 31182644
- Zhang H & Hu N Telomerase reverse transcriptase induced thyroid carcinoma cell proliferation through PTEN/AKT signaling pathway. Mol Med Rep 18:1345-1352 (2018). PubMed: 29901196
- Ohmine S et al. Aurora-A overexpression is linked to development of aggressive teratomas derived from human iPS cells. Oncol Rep 39:1725-1730 (2018). PubMed: 29393405
