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Monoclonal Anti-S100B antibody produced in mouse

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, clone CL2720, purified immunoglobulin, buffered aqueous glycerol solution

Human Protein Atlas Number:

Quality Level

biological source




antibody form

purified immunoglobulin

antibody product type

primary antibodies


CL2720, monoclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity

mouse, rat, human


antibody small pack of 25 μL

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation


immunoblotting: 1 μg/mL
immunohistochemistry: 1:500- 1:1000



immunogen sequence


UniProt accession no.


research pathology

shipped in

wet ice

storage temp.


Gene Information

human ... S100B(6285)

General description

The gene S-100 β subunit (S100B) is a 21kDa acidic protein. It is encoded by the gene mapped to human chromosome 21q22.3. The gene codes for a calcium-binding protein and is a member of S100 family of calcium-binding proteins. The encoded protein is produced predominantly by astrocytes. S100B is a homodimer with two β subunits.


S100 calcium binding protein B


All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project ( as a result, are supported by the most extensive characterization in the industry. The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collecation of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit

Monoclonal Anti-S100B antibody produced in mouse has been used in immunocytochemistry and immunofluorescence studies.

Biochem/physiol Actions

S-100 β subunit (S100B) exerts paracrine and autocrine effects on neurons and glia. At nanomolar concentrations, the encoded protein promotes neurite outgrowth and increases survival of neurons during development. S100B serves as a marker of melanocyte cytotoxicity. In addition, it also acts as a serum marker in endocrine resistant breast cancer and Nonsegmental Vitiligo. Decreased expression of S100B has been observed in chronic liver disease patients.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Physical form

40% glycerol and PBS (pH 7.2). 0.02% sodium azide is added as preservative.

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

10 - Combustible liquids



Certificate of Analysis

Certificate of Origin

Decreased S100B expression in chronic liver diseases.
Baik S J, et al.
The Korean Journal of Internal Medicine, 32(2), 269?276-269?276 (2017)
Rapid prenatal diagnosis of trisomy 21 by real-time quantitative polymerase chain reaction with amplification of small tandem repeats and S100B in chromosome 21.
Yang Y H, et al.
Yonsei Medical Journal, 46(6), 193-197 (2005)
Pratibha Tripathi et al.
Stem cell reports, 9(2), 667-680 (2017-07-18)
Amyotrophic lateral sclerosis (ALS) is a fatal and rapidly progressing motor neuron disease. Astrocytic factors are known to contribute to motor neuron degeneration and death in ALS. However, the role of astrocyte in promoting motor neuron protein aggregation, a disease
S100β as a serum marker in endocrine resistant breast cancer.
Charmsaz S, et al.
BMC Medicine, 51(1), 79-79 (2017)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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