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AB322063

Anti-Brd4 antibody [EPR29186-23]

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Anti-Brd4 antibody [EPR29186-23] is a Rabbit Monoclonal antibody that is used in Brd4 Dot Blot, IHC-P, Western Blot. Suitable for Human, Mouse, Rat samples.

BRD4 (Bromodomain-containing protein 4) is a chromatin reader protein that recognizes and binds acetylated histones, playing a crucial role in transcription regulation. It is part of the BET (bromodomain and extra terminal domain) family, which includes BRD2, BRD3, and BRDT. BRD4 is involved in maintaining epigenetic memory across cell divisions and is essential for the expression of certain oncogenes in various cancers

View Alternative Names

HUNK1, Bromodomain-containing protein 4, Protein HUNK1, Mcap, Brd4, Bromodomain-containing protein 4, Mitotic chromosome-associated protein, MCAP

14 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Human colon tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on human colon. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Human colon carcinoma tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on human colon carcinoma. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Human tonsil tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on human tonsil. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Rat kidney tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on rat kidney. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Mouse kidney tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on mouse kidney. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Mouse colon tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on mouse colon. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Mouse testis tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on mouse testis. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Immunohistochemical analysis of paraffin-embedded Rat testis tissue labeling Brd4 with ab322063 at 1/100 (5.11 ug/ml) dilution, followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on rat testis. The section was incubated with ab322063 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • WB

Supplier Data

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

To minimize protein degradation, cells were lysed immediately after harvest and then applied to a gel and transfer membrane for Western blotting as soon as possible.

In Western blot, Anti-GAPDH antibody [EPR16891] - Loading Control (ab181602) staining at 1/200000 dilution.

All lanes:

Western blot - Anti-Brd4 antibody [EPR29186-23] (ab322063) at 1/1000 dilution

Lane 1:

293T (human embryonic kidney epithelial cell) transfected with scrambled siRNA control whole cell lysate at 20 µg

Lane 2:

293T transfected with siRNA specifically targeting Brd4S whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Observed band size: 99 kDa,36 kDa

false

Exposure time: 180s

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • WB

Supplier Data

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

To minimize protein degradation, cells were lysed immediately after harvest and then applied to a gel and transfer membrane for Western blotting as soon as possible.

In Western blot, Anti-GAPDH antibody [EPR16891] - Loading Control (ab181602) staining at 1/200000 dilution.

All lanes:

Western blot - Anti-Brd4 antibody [EPR29186-23] (ab322063) at 1/1000 dilution

All lanes:

K-562 (human chronic myelogenous leukemia lymphoblast) whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Observed band size: 99 kDa

false

Exposure time: 15s

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • WB

Supplier Data

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

To minimize protein degradation, cells were lysed immediately after harvest and then applied to a gel and transfer membrane for Western blotting as soon as possible.

Exposure time : Lanes 1-2 : 26 seconds, Lanes : 3-4 : 92 seconds, Lane 5 : 37 seconds

All lanes:

Western blot - Anti-Brd4 antibody [EPR29186-23] (ab322063) at 1/1000 dilution

Lane 1:

HeLa (human cervical adenocarcinoma epithelial cell) whole cell lysate at 20 µg

Lane 2:

293T (human embryonic kidney epithelial cell) whole cell lysate at 20 µg

Lane 3:

NIH/3T3 (mouse embryonic fibroblast) whole cell lysate at 20 µg

Lane 4:

PC-12 (rat adrenal gland pheochromocytoma cell) whole cell lysate at 20 µg

Lane 5:

ES-D3 [D3] (mouse blastocyst-derived embryonic stem cell) whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Observed band size: 99 kDa

false

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • WB

Supplier Data

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

To minimize protein degradation, tissues were lysed immediately after harvest and then applied to a gel and transfer membrane for Western blotting as soon as possible.

All lanes:

Western blot - Anti-Brd4 antibody [EPR29186-23] (ab322063) at 1/1000 dilution

Lane 1:

Rat liver tissue lysate at 20 µg

Lane 2:

Rat testis tissue lysate at 20 µg

Lane 3:

Rat spleen tissue lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Observed band size: 99 kDa

false

Exposure time: 180s

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • WB

Supplier Data

Western blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

In lanes 1-3, to minimize protein degradation, tissues were lysed immediately after harvest and then applied to a gel and transfer membrane for Western blotting as soon as possible.

The identity of the lower MW band at approximately 37 kDa (in lane 1) is unknown.

All lanes:

Western blot - Anti-Brd4 antibody [EPR29186-23] (ab322063) at 1/1000 dilution

Lane 1:

Mouse liver tissue lysate at 20 µg

Lane 2:

Mouse testis tissue lysate at 20 µg

Lane 3:

Mouse spleen tissue lysate at 20 µg

Lane 4:

Mouse placenta tissue lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Observed band size: 99 kDa

false

Exposure time: 180s

Dot Blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)
  • Dot

Supplier Data

Dot Blot - Anti-Brd4 antibody [EPR29186-23] (AB322063)

Dot blot analysis of Brd4 using ab322063 at 1 : 1000 (0.511 ug/ml) followed by a Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (ab97051) at 1 : 100,000 dilution.

Lane1 : Brd4S peptide a
Lane2 : Brd4S peptide b
Lane3 : BRD4L peptide
Lane4 : BAZ1A peptide
Lane5 : BRWD1 peptide
Lane6 : NMDE4 peptide
Lane7 : ZMYD8 peptide
Lane8 : B3A4 peptide

Exposure time : 180 seconds.

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

This antibody does not cross-react with human BRD4L, BAZ1A, BRWD1, NMDE4, ZMYD8 and B3A4.

All lanes:

Dot Blot - Anti-Brd4 antibody [EPR29186-23] (ab322063) at 1/1000 dilution

Lane 1:

Brd4S peptide a

Lane 2:

Brd4S peptide b

Lane 3:

BRD4L peptide

Lane 4:

BAZ1A peptide

Lane 5:

BRWD1 peptide

Lane 6:

NMDE4 peptide

Lane 7:

ZMYD8 peptide

Lane 8:

B3A4 peptide

Secondary

All lanes:

Dot Blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

false

Exposure time: 180s

  • Carrier free

    Anti-Brd4 antibody [EPR29186-23] - BSA and Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR29186-23

Isotype

IgG

Carrier free

No

Reacts with

Human, Mouse, Rat

Applications

IHC-P, Dot, WB

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

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Product details

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Conditional Ambient
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

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

The Brd4 protein also known as Bromodomain containing protein 4 plays an important role as a transcriptional regulator. It recognizes acetylated lysine residues on histone tails through its bromodomains. This binding impacts chromatin structure and transcriptional activation. The Brd4 protein has a molecular weight of around 150 kDa and is often used as a marker in studies using Brd4 western blot techniques. It mainly expresses in the nucleus of most cell types and is an important focus for developing Brd4 anticuerpos useful for detecting protein size discrepancies in research.
Biological function summary

Brd4 plays a significant role in regulating gene expression during cell cycle progression. It interacts with the Mediator complex enabling communication between transcriptional activators and RNA polymerase II. This protein is integral for maintaining chromatin in an active state ensuring accessibility for transcription machinery. Moreover Brd4 size and functionality relate to the elongation of transcription by RNA polymerase II ensuring the seamless expression of genes essential for cellular functions.

Pathways

Brd4 integrates into transcriptional and epigenetic regulation pathways. It acts in the positive regulation of the MYC pathway directly linking Brd4 with proto-oncogene c-Myc. Also Brd4 engages in the JAK/STAT signaling pathway where its activity affects cell growth and immune response. These interactions establish Brd4 as a central regulator within these pathways facilitating communication and coordination among molecular players.

Brd4 link heavily to cancer and inflammatory diseases. Aberrant Brd4 activity often associates with various cancers including leukemia where its regulation impacts oncogenic drivers. Clinically targeting Brd4 presents a therapeutic avenue as its inhibition affects cyclin-dependent kinase 9 (CDK9) an important regulator of the cell cycle. Similarly Brd4 alterations implicate in inflammatory disorders impacting nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) signaling revealing pathways for intervening in pathogenic processes.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Chromatin reader protein that recognizes and binds acetylated histones and plays a key role in transmission of epigenetic memory across cell divisions and transcription regulation (PubMed : 20871596, PubMed : 23086925, PubMed : 23317504, PubMed : 29176719, PubMed : 29379197). Remains associated with acetylated chromatin throughout the entire cell cycle and provides epigenetic memory for postmitotic G1 gene transcription by preserving acetylated chromatin status and maintaining high-order chromatin structure (PubMed : 22334664, PubMed : 23317504, PubMed : 23589332). During interphase, plays a key role in regulating the transcription of signal-inducible genes by associating with the P-TEFb complex and recruiting it to promoters (PubMed : 16109376, PubMed : 16109377, PubMed : 19596240, PubMed : 23589332, PubMed : 24360279). Also recruits P-TEFb complex to distal enhancers, so called anti-pause enhancers in collaboration with JMJD6 (PubMed : 16109376, PubMed : 16109377, PubMed : 19596240, PubMed : 23589332, PubMed : 24360279). BRD4 and JMJD6 are required to form the transcriptionally active P-TEFb complex by displacing negative regulators such as HEXIM1 and 7SKsnRNA complex from P-TEFb, thereby transforming it into an active form that can then phosphorylate the C-terminal domain (CTD) of RNA polymerase II (PubMed : 16109376, PubMed : 16109377, PubMed : 19596240, PubMed : 23589332, PubMed : 24360279). Regulates differentiation of naive CD4(+) T-cells into T-helper Th17 by promoting recruitment of P-TEFb to promoters (By similarity). Promotes phosphorylation of 'Ser-2' of the C-terminal domain (CTD) of RNA polymerase II (PubMed : 23086925). According to a report, directly acts as an atypical protein kinase and mediates phosphorylation of 'Ser-2' of the C-terminal domain (CTD) of RNA polymerase II; these data however need additional evidences in vivo (PubMed : 22509028). In addition to acetylated histones, also recognizes and binds acetylated RELA, leading to further recruitment of the P-TEFb complex and subsequent activation of NF-kappa-B (PubMed : 19103749). Also acts as a regulator of p53/TP53-mediated transcription : following phosphorylation by CK2, recruited to p53/TP53 specific target promoters (PubMed : 23317504).. Isoform B. Acts as a chromatin insulator in the DNA damage response pathway. Inhibits DNA damage response signaling by recruiting the condensin-2 complex to acetylated histones, leading to chromatin structure remodeling, insulating the region from DNA damage response by limiting spreading of histone H2AX/H2A.x phosphorylation.
See full target information BRD4

Additional targets

Brd4,Brd4

Product promise

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