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Key Documents

MABF2069

Sigma-Aldrich

Anti-Glucuronoxylomannan (GXM) Antibody, clone 18B7

clone 18B7, from mouse

Sinonimo/i:

GXM

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About This Item

Codice UNSPSC:
12352203
eCl@ss:
32160702

Origine biologica

mouse

Livello qualitativo

Forma dell’anticorpo

purified immunoglobulin

Tipo di anticorpo

primary antibodies

Clone

18B7, monoclonal

Reattività contro le specie

mouse

tecniche

ELISA: suitable
immunocytochemistry: suitable
immunodepletion: suitable
immunofluorescence: suitable
immunohistochemistry: suitable (paraffin)

Isotipo

IgG1κ

Condizioni di spedizione

ambient

modifica post-traduzionali bersaglio

unmodified

Descrizione generale

Cryptococcus neoformans is an encapsulated yeast-like fungus that is reported to causes systemic infections, including fatal meningoencephalitis. Glucuronoxylomannan (GXM) is the principal constituent of the Cryptococcus neoformans capsule that modulates the inflammatory response of human monocytes in vitro. The basic structural unit of GXM is a tri-mannose repeat with a glucuronic acid residue in the first mannose. Its structure is shown to be further modified in individual strains by the addition of xylose substitutions on the mannan backbone. Six triads known as M1-M2 are shown to be present in various proportions in GXM from the various serotypes and M2 is reported to be the most common triad in serotype A GXM. Soluble GXM serves as an important virulence factor and contributes to the pathogenesis of infection, and high levels of GXM have been found in serum of patients with cryptococcosis. Clone 18B7 displays significant activity against GXM and is reported act by possibly hydrolyzing the oligosaccharide substrate. This antibody acts as a potent opsonin for Cryptococcus neoforman by increasing its phagocytosis. This antibody may also reduce GXM levels by interfering with the release of polysaccharide from the capsule. Administration of this antibody to mice is shown to rapidly clear serum Cryptococcal antigen. (Ref.: Bowen, A., et al. (2017). J. Biol. Chem. 292(2); 417-434; Martinez, LR., et al. (2004). Infect. Immun. 72(6); 3674 3679; Tissi, L., et al. (2004). Infect. Immun. 72(11); 6367-6372; Devi, SJN et al. (1991). Infect. Immun. 59(10); 3700-3707).

Specificità

Clone 18B7 is a mouse monoclonal antibody that binds to Glucuronoxylomannan (GXM) from Cryptococcus neoformans.

Immunogeno

Cryptococcus neoformans serotype A glucuronoxylomannan (GXM)-Tetanus Toxoid conjugate vaccine.

Applicazioni

Anti-Glucuronoxylomannan (GXM), clone 18B7, Cat. No. MABF2069, is a mouse monoclonal antibody for detection of Cryptococcus neoformans Glucuronoxylomannan and has been tested for use in and ELISA, Immunodepletion, Immunocytochemistry, Immunofluorescence, and Immunohistochemistry (Paraffin),
Immunohistochemistry Analysis: A representative lot detected Glucuronoxylomannan (GXM) in Immunohistochemistry applications (Lendvai, N., et. al. (1999). J Infect Dis. 180(3):791-801; Casadevall, A., et. al. (1998). Antimicrob Agents Chemother. 42(6):1437-46).

Immunodepletion Analysis: A representative lot immunodepleted Glucuronoxylomannan (GXM) in Immunodepletion applications (Lendvai, N., et. al. (1999). J Infect Dis. 180(3):791-801; Casadevall, A., et. al. (1998). Antimicrob Agents Chemother. 42(6):1437-46; Martinez, L.R., et. al. (2004). Infect Immun. 72(6):3674-9; Bowen, A., et. al. (2017). J Biol Chem. 292(2):417-434).

Immunofluorescence Analysis: A representative lot detected Glucuronoxylomannan (GXM) in Immunofluorescence applications (Casadevall, A., et. al. (1998). Antimicrob Agents Chemother. 42(6):1437-46; Bowen, A., et. al. (2017). J Biol Chem. 292(2):417-434).

Immunocytochemistry Analysis: A 1:1,000 dilution from a representative lot detected Glucuronoxylomannan (GXM) in heat killed cryptococcus cells.

Immunohistochemistry Analysis: A 1:50-250 dilution from a representative lot detected Glucuronoxylomannan (GXM) in S. neoformans-infected mouse spleen, mouse lung, mouse liver, and mouse brain tissues.

ELISA Analysis: A representative lot detected Glucuronoxylomannan (GXM) in ELISA applications (Casadevall, A., et. al. (1998). Antimicrob Agents Chemother. 42(6):1437-46; Martinez, L.R., et. al. (2004). Infect Immun. 72(6):3674-9; Bowen, A., et. al. (2017). J Biol Chem. 292(2):417-434).
Research Category
Inflammation & Immunology

Qualità

Isotype testing: Identity Confirmation by Isotyping Test.

Isotyping Analysis: The identity of this monoclonal antibody is confirmed by isotyping test to be mouse IgG1 .

Stato fisico

Format: Purified
Protein G purified
Purified mouse monoclonal antibody IgG1 in PBS without azide.

Stoccaggio e stabilità

Stable for 1 year at -20°C from date of receipt. Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.

Altre note

Concentration: Please refer to lot specific datasheet.

Esclusione di responsabilità

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.

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Codice della classe di stoccaggio

12 - Non Combustible Liquids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


Certificati d'analisi (COA)

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Keigo Ueno et al.
European journal of immunology, 51(9), 2281-2295 (2021-03-18)
Cryptococcus gattii is a capsular pathogenic fungus causing life-threatening cryptococcosis. Although the capsular polysaccharides (CPs) of C. gattii are considered as virulence factors, the physiological significance of CP biosynthesis and of CPs themselves is not fully understood, with many conflicting data reported.
Matheus Henrique Dos Santos et al.
Cells, 11(21) (2022-11-12)
Chimeric antigen receptors (CARs) redirect T cells to recognize a specific target. CAR components play a pivotal role in antigen specificity, structure stability, expression on cell surface, and induction of cellular activation, which together determine the success of CAR T-cell
Ya-Nan Li et al.
Nature communications, 13(1), 4074-4074 (2022-07-15)
Cryptococcosis is a potentially lethal disease that is primarily caused by the fungus Cryptococcus neoformans, treatment options for cryptococcosis are limited. Here, we show glucuronoxylomannan, the major polysaccharide component of C. neoformans, induces the recruitment of neutrophilic myeloid-derived suppressor cells
Suresh Ambati et al.
mSphere, 4(5) (2019-11-02)
Candida albicans, Cryptococcus neoformans, and Aspergillus fumigatus cause life-threatening candidiasis, cryptococcosis, and aspergillosis, resulting in several hundred thousand deaths annually. The patients at the greatest risk of developing these life-threatening invasive fungal infections have weakened immune systems. The vulnerable population

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