ASC/TMS1 Antibody - BSA Free

Novus Biologicals | Catalog # NBP1-78978

Novus Biologicals
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Key Product Details

Species Reactivity

Validated:

Human, Mouse

Cited:

Human, Mouse

Applications

Validated:

Immunohistochemistry, Immunohistochemistry-Paraffin, Immunocytochemistry/ Immunofluorescence, Western Blot (Negative)

Cited:

Immunohistochemistry, Western Blot, Immunocytochemistry/ Immunofluorescence

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG

Format

BSA Free
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Product Specifications

Immunogen

This ASC/TMS1 Antibody was developed against a synthetic peptide made to a C-terminal portion of the human ASC/TMS1 protein (between residues 145-195) [Uniprot: Q9ULZ3]

Localization

Cytoplasm. Note: Upstream of caspase activation, a redistribution from the cytoplasm to the aggregates occurs. These appear as hollow, perinuclear spherical, ball-like structures.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for ASC/TMS1 Antibody - BSA Free

Immunohistochemistry: ASC/TMS1 Antibody - BSA Free [NBP1-78978]

Immunohistochemistry: ASC/TMS1 Antibody - BSA Free [NBP1-78978]

Immunohistochemistry: ASC/TMS1 Antibody [NBP1-78978] - Analysis of ASC/TMS1 in mouse intestine using DAB with hematoxylin counterstain.
Immunocytochemistry/ Immunofluorescence: ASC/TMS1 Antibody - BSA Free [NBP1-78978]

Immunocytochemistry/ Immunofluorescence: ASC/TMS1 Antibody - BSA Free [NBP1-78978]

Immunocytochemistry/Immunofluorescence: ASC/TMS1 Antibody [NBP1-78978] - Tested in A431 cells with FITC (green). Nuclei and alpha-tubulin were counterstained with DAPI (blue) and DyLight 550 (red).
ASC/TMS1 Antibody - BSA Free

Western Blot: ASC/TMS1 Antibody - BSA Free [NBP1-78978] -

NLRP3 inflammasome and GSDMD are strongly expressed and activated in CNS microglia during EAE.A Immunoblot analysis of NLRP3, ASC, full-length (FL) and cleaved caspase-1, IL-1 beta, and GSDMD in the lumbosacral spinal cords of EAE-induced WT mice at peak disease or CFA-treated mice on day 18 after treatment (n = 10 per group). B Immunohistochemistry showing infiltration of NLRP3, ASC, caspase-1, IL-1 beta, and GSDMD-positive immune cells in the spinal cords of EAE-induced WT mice at peak disease or CFA-treated WT mice on day 18 after treatment. Scale bar: 50 um. n = 10 per group. C Immunofluorescent labeling of Iba-1 (green), NLRP3, ASC, caspase-1, or GSDMD (red), and DAPI (blue) demonstrates the expression and process of NLRP3 inflammasome and GSDMD-mediated pyroptosis in the microglia of WT EAE mice at peak disease or CFA-treated WT mice on day 18 after treatment (n = 10 per group). Scale bar: 20 um. Data are from three representative independent experiments and were analyzed by an unpaired t-test or the Mann–Whitney U test. Error bars show the mean +/- SEM. ***P < 0.001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36765034), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Applications for ASC/TMS1 Antibody - BSA Free

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

1:40-1:100

Immunohistochemistry

1:200

Immunohistochemistry-Paraffin

1:200
Application Notes
Prior to immunostaining paraffin tissues, antigen retrieval with sodium citrate buffer (pH 6.0) is recommended. This antibody is not recommended for Western Blot.

Reviewed Applications

Read 1 review rated 5 using NBP1-78978 in the following applications:

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

PBS and 30% Glycerol

Format

BSA Free

Preservative

0.05% Sodium Azide

Concentration

1.12 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: ASC

ASC (apoptosis-associated speck-like protein containing a CARD), also known as TMS1 (target of methylation-induced silencing), was first identified in 1999 as a protein that forms aggregates, or specks, during retinoic acid-induced apoptosis in a human leukemia cell line (1). Furthermore, it was discovered to have a role as a tumor suppressor as methylation silences ASC/TMS1 expression in many tumors (2-5). ASC/TMS1 is synthesized as a 195-amino acid (aa) protein with a theoretical weight of 22 kDa. Structurally the protein contains a N-terminal PYD (pyrin domain) and C-terminal CARD (caspase-recruitment domain) (1-4). Historically, CARD and PYD-containing proteins are known to have crucial functions in regulating apoptosis and immune response pathways (2-5). Furthermore, mutations in many CARD and PYD-containing proteins have been linked to various cancers and inflammatory diseases (2-5). Given its immune response role, it is not surprising that ASC/TMS1 is typically highly expressed in immune cells, specifically in neutrophils and cells of the macrophage/monocyte lineage (5). Additionally, it is expressed in many normal epithelial cell types (4,5).

In regard to immune and inflammatory response, ASC/TMS1 is involved in inflammasome function (3-4). The inflammasome is a multiprotein complex that responds to cellular stress or pathogens and activates inflammatory responses. Specifically, ASC/TMS1 helps assemble the NLRP3 inflammasome complex which then activates caspase-1, followed by stimulation of proinflammatory cytokines including IL-1b and IL-18 (3-4). In terms of the role in regulating apoptosis, multiple studies have revealed that the ASC/TMS1 gene is hypermethylated in many cancers including breast, lung, glioblastomas, and melanomas (2-5). The increased methylation results in decreased gene expression, or silencing, allowing those cancer cells to escape apoptosis (2-5).

References

1. Masumoto, J., Taniguchi, S., Ayukawa, K., Sarvotham, H., Kishino, T., Niikawa, N., Hidaka, E., Katsuyama, T., Higuchi, T., & Sagara, J. (1999). ASC, a novel 22-kDa protein, aggregates during apoptosis of human promyelocytic leukemia HL-60 cells. The Journal of biological chemistry, 274(48), 33835-33838. https://doi.org/10.1074/jbc.274.48.33835

2. McConnell, B. B., & Vertino, P. M. (2004). TMS1/ASC: the cancer connection. Apoptosis: an international journal on programmed cell death. https://doi.org/10.1023/B:APPT.0000012117.32430.0c

3. Salminen, A., Kauppinen, A., Hiltunen, M., & Kaarniranta, K. (2014). Epigenetic regulation of ASC/TMS1 expression: potential role in apoptosis and inflammasome function. Cellular and molecular life sciences : CMLS. https://doi.org/10.1007/s00018-013-1524-9

4. Protti, M. P., & De Monte, L. (2020). Dual Role of Inflammasome Adaptor ASC in Cancer. Frontiers in cell and developmental biology. https://doi.org/10.3389/fcell.2020.00040

5. Parsons, M. J., & Vertino, P. M. (2006). Dual role of TMS1/ASC in death receptor signaling. Oncogene. https://doi.org/10.1038/sj.onc.1209684

Long Name

Apoptosis-Associated Speck-Like Protein Containing A CARD

Alternate Names

CARD5, PYCARD, TMS1

Entrez Gene IDs

29108 (Human)

Gene Symbol

PYCARD

UniProt

Additional ASC Products

Product Documents for ASC/TMS1 Antibody - BSA Free

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Product Specific Notices for ASC/TMS1 Antibody - BSA Free

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Citations for ASC/TMS1 Antibody - BSA Free

Customer Reviews for ASC/TMS1 Antibody - BSA Free (1)

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  • Name: Anonymous
    Application: Western Blot
    Sample Tested: mouse bone marrow-derived macrophage cells
    Species: Mouse
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Protocols

View specific protocols for ASC/TMS1 Antibody - BSA Free (NBP1-78978):

ASC/TMS1 Antibody:
Immunocytochemistry Protocol

Culture cells to appropriate density in 35 mm culture dishes or 6-well plates.
1. Remove culture medium and add 10% formalin to the dish. Fix at room temperature for 30 minutes.
2. Remove the formalin and add ice cold methanol. Incubate for 5-10 minutes.
3. Remove methanol and add washing solution (i.e. PBS). Be sure to not let the specimen dry out. Wash three times for 10 minutes.
4. To block nonspecific antibody binding incubate in 10% normal goat serum from 1 hour to overnight at room temperature.
5. Add primary antibody at appropriate dilution and incubate at room temperature from 2 hours to overnight at room temperature.
6. Remove primary antibody and replace with washing solution. Wash three times for 10 minutes.
7. Add secondary antibody at appropriate dilution. Incubate for 1 hour at room temperature.
8. Remove antibody and replace with wash solution, then wash for 10 minutes. Add Hoechst 33258 to wash solution at 1:25,0000 and incubate for 10 minutes. Wash a third time for 10 minutes.
9. Cells can be viewed directly after washing. The plates can also be stored in PBS containing Azide covered in Parafilm (TM). Cells can also be cover-slipped using Fluoromount, with appropriate sealing.

*The above information is only intended as a guide. The researcher should determine what protocol best meets their needs. Please follow safe laboratory procedures.

ASC/TMS1 Antibody:
Immunohistochemistry-Paraffin Embedded Sections

Antigen Unmasking:
Bring slides to a boil in 10 mM sodium citrate buffer (pH 6.0) then maintain at a sub-boiling temperature for 10 minutes. Cool slides on bench-top for 30 minutes.

Staining:
1. Wash sections in deionized water three times for 5 minutes each.
2. Wash sections in wash buffer for 5 minutes.
3. Block each section with 100-400 ul blocking solution for 1 hour at room temperature.
4. Remove blocking solution and add 100-400 ul diluted primary antibody. Incubate overnight at 4C.
5. Remove antibody solution and wash sections in wash buffer three times for 5 minutes each.
6. Add 100-400 ul biotinylated diluted secondary antibody. Incubate 30 minutes at room temperature.
7. Remove secondary antibody solution and wash sections three times with wash buffer for 5 minutes each.
8. Add 100-400 ul Streptavidin-HRP reagent to each section and incubate for 30 minutes at room temperature.
9. Wash sections three times in wash buffer for 5 minutes each.
10. Add 100-400 ul DAB substrate to each section and monitor staining closely.
11. As soon as the sections develop, immerse slides in deionized water.
12. Counterstain sections in hematoxylin.
13. Wash sections in deionized water two times for 5 minutes each.
14. Dehydrate sections.
15. Mount coverslips.

*The above information is only intended as a guide. The researcher should determine what protocol best meets their needs. Please follow safe laboratory procedures.

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