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Rabbit Polyclonal RYBP antibody. Suitable for WB, IHC-P, ICC/IF and reacts with Mouse, Human samples. Cited in 10 publications. Immunogen corresponding to Synthetic Peptide within Human RYBP aa 200 to C-terminus.


Images

Immunocytochemistry/ Immunofluorescence - Anti-RYBP antibody (AB5976), expandable thumbnail
  • Western blot - Anti-RYBP antibody (AB5976), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-RYBP antibody (AB5976), expandable thumbnail
  • Immunocytochemistry/ Immunofluorescence - Anti-RYBP antibody (AB5976), expandable thumbnail
  • Western blot - Anti-RYBP antibody (AB5976), expandable thumbnail

Publications

Key facts

Isotype
IgG
Host species
Rabbit
Storage buffer

pH: 7.2
Preservative: 0.02% Sodium azide

Form
Liquid
Clonality
Polyclonal

Immunogen

  • Synthetic Peptide within Human RYBP aa 200 to C-terminus. The exact immunogen used to generate this antibody is proprietary information. Database link Q8N488

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Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
WBIHC-PICC/IF
Human
Tested
Expected
Tested
Mouse
Tested
Tested
Expected

Tested
Tested

Species
Mouse
Dilution info
0.5-1 µg/mL
Notes

Can be blocked with DEDAF peptide (human).

Species
Human
Dilution info
0.5-1 µg/mL
Notes

Can be blocked with DEDAF peptide (human).

Tested
Tested

Species
Mouse
Dilution info
5-10 µg/mL
Notes

-

Expected
Expected

Species
Human
Dilution info
Use at an assay dependent concentration.
Notes

-

Tested
Tested

Species
Human
Dilution info
1-20 µg/mL
Notes

-

Expected
Expected

Species
Mouse
Dilution info
Use at an assay dependent concentration.
Notes

-

Associated Products

Select an associated product type

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Target data

Function

Component of a Polycomb group (PcG) multiprotein PRC1-like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG PRC1-like complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility (PubMed:25519132). Component of a PRC1-like complex that mediates monoubiquitination of histone H2A 'Lys-119' on the X chromosome and is required for normal silencing of one copy of the X chromosome in XX females. May stimulate ubiquitination of histone H2A 'Lys-119' by recruiting the complex to target sites (By similarity). Inhibits ubiquitination and subsequent degradation of TP53, and thereby plays a role in regulating transcription of TP53 target genes (PubMed:19098711). May also regulate the ubiquitin-mediated proteasomal degradation of other proteins like FANK1 to regulate apoptosis (PubMed:14765135, PubMed:27060496). May be implicated in the regulation of the transcription as a repressor of the transcriptional activity of E4TF1 (PubMed:11953439). May bind to DNA (By similarity). May play a role in the repression of tumor growth and metastasis in breast cancer by down-regulating SRRM3 (PubMed:27748911).

Alternative names

Recommended products

Rabbit Polyclonal RYBP antibody. Suitable for WB, IHC-P, ICC/IF and reacts with Mouse, Human samples. Cited in 10 publications. Immunogen corresponding to Synthetic Peptide within Human RYBP aa 200 to C-terminus.

Key facts

Isotype
IgG
Form
Liquid
Clonality
Polyclonal
Immunogen
  • Synthetic Peptide within Human RYBP aa 200 to C-terminus. The exact immunogen used to generate this antibody is proprietary information. Database link Q8N488
Purification technique
Affinity purification Immunogen
Concentration
Loading...
Purification notes

DEDAF Antibody is affinity chromatography purified via peptide column.

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C

Notes

Apoptosis is related to many diseases and induced by a family of cell death receptors and their ligands. Cell death signals are transduced by death domain (DD) death effector domain (DED), and caspase recruitment domain (CARD) containing molecules. Several molecules including caspases and adaptor FADD contain DEDs. A novel protein that interacts with DED of caspase 8 and 10, and FADD was identified recently and designated DEDAF for DED associated factor. DEDAF is identical to the transcriptional repressor RYBP. DEDAF/RYBP is expressed in multiple tissues and cell lines. DEDAF interacts with FADD and augments the formation of CD95/FADD/capase 8 complexes at the cell membrane, and interacts with DED-containing DNA biding protein (DEDD) in the nucleus indicating it is involved in the regulation of both cytoplasmic and nuclear events of apoptosis.

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Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

RYBP also known as Ring1 and YY1 Binding Protein has a critical mechanical role in gene regulation. It has a molecular weight of approximately 28 kDa. It is a part of the Polycomb group (PcG) proteins which take part in chromatin remodeling to regulate gene expression. RYBP is found in the nucleus of cells and is known to bind DNA directly. Its expression occurs widely across various tissues indicating its broad involvement in cellular functions.

Biological function summary

This protein actively participates in maintaining transcriptional repression through its involvement in the Polycomb Repressive Complex 1 (PRC1). PRC1 includes other key proteins such as Ring1A/B and CBX proteins which work together to modulate chromatin structure. RYBP contributes to the ubiquitination of histone H2A a process essential for maintaining gene silencing. This activity is important during developmental stages influencing cell fate decisions and lineage commitment.

Pathways

RYBP plays an essential role in the regulation of the Wnt signaling pathway and the apoptosis pathway. Within the Wnt pathway RYBP acts in part by interacting with proteins such as β-catenin influencing cell proliferation and differentiation. In the apoptosis pathway it is involved through its interactions with E3 ubiquitin ligases potentially affecting cell death regulation. These pathways showcase how RYBP integrates into important cellular processes impacting cellular homeostasis.

Associated diseases and disorders

RYBP has connections to cancer and neurodevelopmental disorders. Its altered expression is linked to tumor progression where it interacts with other PcG proteins like EZH2 often showing overexpression in cancers. These interactions can lead to abnormal gene silencing contributing to oncogenesis. In neurodevelopmental contexts disruptions in RYBP's function are associated with changes in neural differentiation and might correlate with disorders like autism spectrum disorders highlighting its broader relevance beyond typical gene expression roles.

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5 product images

  • Immunocytochemistry/ Immunofluorescence - Anti-RYBP antibody (ab5976), expandable thumbnail
    This image is courtesy of a customer review submitted by Dr. Ligia Tavares

    Immunocytochemistry/ Immunofluorescence - Anti-RYBP antibody (ab5976)

    ab5976 staining RYBP in Mouse embryonic stem cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with Triton 0.5% and blocked with 1% milk for 30 minutes at 22°C. Samples were incubated with primary antibody (1/1000) for 1 hour at 22°C. An Alexa Fluor®488-conjugated Goat anti-rabbit IgG (H+L) polyclonal (1/400) was used as the secondary antibody.

  • Western blot - Anti-RYBP antibody (ab5976), expandable thumbnail

    Western blot - Anti-RYBP antibody (ab5976)

    Western blot analysis of DEDAF expression in human A549 (lane A), HepG2 (lane B), and mouse 3T3 (lane C) cell lysates withab5976 at 1 μg /ml.

    Western blot analysis of DEDAF expression in human A549 (lane A), HepG2 (lane B), and mouse 3T3 (lane C) cell lysates withab5976 at 1 µg /ml.

    All lanes: Western blot - Anti-RYBP antibody (ab5976)

    Predicted band size: 25 kDa

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-RYBP antibody (ab5976), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-RYBP antibody (ab5976)

    Immunohistochemistry of DEDAF in mouse liver tissue with DEDAF antibody at 5 μg/ml.

  • Immunocytochemistry/ Immunofluorescence - Anti-RYBP antibody (ab5976), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Anti-RYBP antibody (ab5976)

    Immunofluorescence of DEDAF in A549 cells using ab5976 at 20 ug/ml.

  • Western blot - Anti-RYBP antibody (ab5976), expandable thumbnail

    Image collected and cropped by CiteAb under a CC-BY license from the publication

    Western blot - Anti-RYBP antibody (ab5976)

    RYBP western blot using anti-RYBP antibody ab5976. Publication image and figure legend from Bian, F., Gao, F., et al., 2016, Sci Rep, PubMed 27181215.


    ab5976 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab5976 please see the product overview.

    Analysis of uterine expression for Cbx2, Cbx4, Ring1B, and Rybp during early pregnancy at protein levels.(A) Western blot analysis. Total protein extracts of uterine tissues were collected during early pregnancy on D4, D5-IS, D7-IIS, and D7-IS. Experimentally induced deciduoma and control horns were also analyzed on D7 pseudopregnancy. Ut, uterus; IS, implantation site; IIS, interimplantation site; Co, control; DM, deciduoma. (B) Quantitation was achieved by direct analysis of the bands from (A). Fold changes in protein levels were normalized by Actin. *Values are statistically different (P < 0.05). (C) IHC localization of Cbx2, Cbx4, and Rybp expression. Representative uterine tissue sections on D4, D5-IS, and D7-IS in the M- and AM-pole locations are shown. Sections are shown at 100X and 400X (as insets). Red staining indicates the localization of immunoreaction. le, luminal epithelium; ge, glandular epithelium, s, stroma; ds, decidualizing stroma; pdz, primary decidual zone; sdz, secondary decidual zone; dec, decidual cells; e, embryo; tgc, trophoblast giant cells; M, mesometrial pole; AM, antimesometrial pole. Arrow indicates polyploid cells. (D) IF analysis of Ring1B. Blue and green staining indicates the localization of DAPI (for nuclear) and Ring1B, respectively. Sections are shown at 100X and 400X (as insets). These experiments were repeated at least three times with similar results.

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