ASC/TMS1 Antibody - BSA Free

Novus Biologicals, part of Bio-Techne | Catalog # NBP1-78978

Novus Biologicals, part of Bio-Techne

Key Product Details

Species Reactivity

Validated:

Human, Mouse

Cited:

Human, Mouse

Applications

Validated:

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

Cited:

Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG

Format

BSA Free

Concentration

1.12 mg/ml

View all ASC Antibodies »

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)

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).

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

Q9ULZ3

Additional ASC Products

Product Documents for ASC/TMS1 Antibody - BSA Free

Product Datasheets

Certificate of Analysis

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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.

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