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Home >> Antibodies >> SIN3B Antibody / Paired amphipathic helix protein Sin3b

SIN3B Antibody / Paired amphipathic helix protein Sin3b (FY12547)

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Image FY12547 Adding 0.2 ml of distilled water will yield a concentration of 500 ug/ml 100 ug 449
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Immunohistochemical staining of SIN3B using anti-SIN3B antibody. SIN3B was detected in a paraffin-embedded section of human bladder cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-SIN3B antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Western blot analysis of SIN3B using anti-SIN3B antibody. Electrophoresis was performed on a 8% SDS-PAGE gel at 80V (Stacking gel) / 120V (Resolving gel) for 2 hours. Lane 1: human PC-3 whole cell lysates, Lane 2: human 293T whole cell lysates, Lane 3: human Caco-2 whole cell lysates, Lane 4: human MCF-7 whole cell lysates, Lane 5: rat testis tissue lysates, Lane 6: rat C6 whole cell lysates, Lane 7: mouse testis tissue lysates, Lane 8: mouse NIH/3T3 whole cell lysates. After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-SIN3B antibody at 0.5 ug/ml overnight at 4oC, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal was developed using an ECL Plus Western Blotting Substrate. SIN3B (~133 kDa predicted) was detected as a doublet around ~150 kDa in human lysates and a slightly lower doublet in mouse and rat tissues, consistent with known phosphorylation-dependent mobility and alternative isoform expression of the SIN3B scaffold protein.
Immunohistochemical staining of SIN3B using anti-SIN3B antibody. SIN3B was detected in a paraffin-embedded section of human colon cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-SIN3B antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of SIN3B using anti-SIN3B antibody. SIN3B was detected in a paraffin-embedded section of human colon cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-SIN3B antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of SIN3B using anti-SIN3B antibody. SIN3B was detected in a paraffin-embedded section of rat testis tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-SIN3B antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunofluorescent staining of SIN3B using anti-SIN3B antibody (red). SIN3B was detected in a paraffin-embedded section of human bladder cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 5 ug/ml rabbit anti-SIN3B antibody overnight at 4oC. Cy3 Conjugated Goat Anti-Rabbit IgG was used as secondary antibody at 1:500 dilution and incubated for 30 minutes at 37oC. The section was counterstained with DAPI nuclear stain (blue). Visualize using a fluorescence microscope and filter sets appropriate for the label used.
Immunofluorescent staining of SIN3B using anti-SIN3B antibody (red). SIN3B was detected in a paraffin-embedded section of rat testis tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 5 ug/ml rabbit anti-SIN3B antibody overnight at 4oC. Cy3 Conjugated Goat Anti-Rabbit IgG was used as secondary antibody at 1:500 dilution and incubated for 30 minutes at 37oC. The section was counterstained with DAPI nuclear stain (blue). Visualize using a fluorescence microscope and filter sets appropriate for the label used.
Immunofluorescent staining of SIN3B using anti-SIN3B antibody (green) and anti-Beta Tubulin antibody (red). SIN3B was detected in an immunocytochemical section of Hela cells. Enzyme antigen retrieval was performed using IHC enzyme antigen retrieval reagent for 15 mins. The cells were blocked with 10% goat serum. And then incubated with 5 ug/ml rabbit anti-SIN3B antibody and mouse anti-Beta Tubulin antibody overnight at 4oC. DyLight 488 Conjugated Goat Anti-Rabbit IgG and Cy3 Conjugated Goat Anti-Mouse IgG were used as secondary antibody at 1:500 dilution and incubated for 30 minutes at 37oC. Visualize using a fluorescence microscope and filter sets appropriate for the label used.
Flow Cytometry analysis of Caco-2 cells using anti-SIN3B antibody. Overlay histogram showing Caco-2 cells stained with (Blue line). To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-SIN3B antibody (1 ug/million cells) for 30 min at 20oC. DyLight 488 conjugated goat anti-rabbit IgG (5-10 ug/million cells) was used as secondary antibody for 30 minutes at 20oC. Isotype control antibody (Green line) was rabbit IgG (1 ug/million cells) used under the same conditions. Unlabelled sample without incubation with primary antibody and secondary antibody (Red line) was used as a blank control.
Availability 1-2 days
Species Reactivity Human, Mouse, Rat
Format Lyophilized
Host Rabbit
Clonality Polyclonal (rabbit origin)
Isotype Rabbit IgG
Purity Immunogen affinity purified
Buffer Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.
UniProt O75182
Localization Nuclear
Applications Western Blot : 0.25-0.5ug/ml
Immunohistochemistry : 2-5ug/ml
Immunofluorescence : 5ug/ml
Immunocytochemistry/Immunofluorescence : 5ug/ml
Flow Cytometry : 1-3ug/million cells
ELISA : 0.1-0.5ug/ml
Limitations This SIN3B antibody is available for research use only.
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Description

SIN3B antibody detects Paired amphipathic helix protein Sin3b, a transcriptional corepressor that regulates chromatin structure and gene expression by recruiting histone deacetylase (HDAC) complexes. SIN3B functions in concert with its paralog SIN3A to coordinate gene silencing, differentiation, and cell cycle control. The SIN3B antibody is widely used in epigenetics and transcriptional regulation research to examine HDAC-dependent gene repression.

SIN3B is encoded by the SIN3B gene on human chromosome 19p13.11. The protein is approximately 150 kilodaltons and contains multiple paired amphipathic helix (PAH) domains that mediate interactions with transcription factors and chromatin-modifying enzymes. SIN3B serves as a scaffold that assembles HDAC1, HDAC2, RBBP4/7, and other corepressors into multiprotein complexes targeting specific promoters.

The SIN3B antibody detects a 150 kilodalton band by western blot and shows nuclear localization by immunofluorescence. Through recruitment of HDAC complexes, SIN3B deacetylates histones H3 and H4, resulting in chromatin compaction and transcriptional repression. It also interacts with transcription factors such as E2F4, MAD, and REST, enabling context-dependent regulation of genes involved in proliferation, senescence, and neuronal development.

SIN3B plays key roles in differentiation, acting as a switch from proliferation to quiescence. Knockdown of SIN3B leads to uncontrolled growth and defective chromatin silencing, while overexpression suppresses oncogenic transcription programs. Altered SIN3B function has been implicated in cancer, diabetes, and neurodevelopmental disorders due to disrupted epigenetic control.

As a master regulator of chromatin remodeling, SIN3B integrates multiple signaling pathways to maintain transcriptional balance. NSJ Bioreagents provides a validated SIN3B antibody optimized for western blot, chromatin immunohistochemistry, and nuclear complex analysis, supporting research into epigenetic repression, differentiation, and tumor suppression.

Application Notes

Optimal dilution of the SIN3B antibody should be determined by the researcher.

Immunogen

E.coli-derived human SIN3B recombinant protein (Position: Q127-E1127) was used as the immunogen for the SIN3B antibody.

Storage

After reconstitution, the SIN3B antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

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