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SAB4200799

Sigma-Aldrich

Anti-Shiga Toxin 1, B Subunit-FITC antibody, Mouse monoclonal

clone 13C4, purified from hybridoma cell culture

Sinonimo/i:

Anti-SLT-1 B subunit, Anti-SLT-1b, Verocytotoxin 1 subunit B, Anti-Shiga-like toxin 1 subunit B, Anti-Verotoxin 1 subunit B, Anti-stxB

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About This Item

Codice UNSPSC:
12352203
NACRES:
NA.41

Origine biologica

mouse

Livello qualitativo

Coniugato

FITC conjugate

Forma dell’anticorpo

purified from hybridoma cell culture

Tipo di anticorpo

primary antibodies

Clone

13C4, monoclonal

Descrizione

Research area: Microbiome

Stato

buffered aqueous solution

Reattività contro le specie

E. coli

Condizioni di stoccaggio

protect from light

Concentrazione

~1 mg/mL

tecniche

flow cytometry: 2-4 μg/test using human RAMOS cells pretreated with recombinant Shiga toxin 1, B subunit

Isotipo

IgG1

N° accesso UniProt

Condizioni di spedizione

dry ice

Temperatura di conservazione

−20°C

modifica post-traduzionali bersaglio

unmodified

Descrizione generale

Monoclonal Anti-Shiga Toxin 1, B Subunit-FITC (mouse IgG1 isotype) is derived from the hybridoma 13C4 produced by the fusion of mouse myeloma cells and splenocytes from BALB/c mice. The Shiga toxins are a family of related protein toxins secreted by certain types of bacteria. Shiga toxin (Stx) is produced by Shigella dysenteriae; whereas, the Shiga-like toxins, Stx1 and Stx2, with a few known isoforms, are secreted by specific strains of Escherichia coli named Shiga-toxin-producing E. coli (STEC) such as E. coli O157:H7. Stx1 is identical to Stx and the Stx2 isoforms shares 60% similarity with STX. Howevere, the toxin structure is conserved. Shiga toxins consist of two polypeptides: A and B.

Specificità

Monoclonal Anti-Shiga Toxin 1, B Subunit -FITC recognizes the B subunit of Shiga holotoxin.

Immunogeno

Purifed Shiga-like toxin from E. coli H30.

Applicazioni

Anti-Shiga Toxin 1, B Subunit-FITC antibody, Mouse monoclonal may be used in flow cytometry.

Azioni biochim/fisiol

The STX catalytic A subunit has RNA N-glycosidase activity that inhibits eukaryotic protein synthesis. The B subunits form a pentamer, which recognizes and binds to the functional cell-surface receptor globotriaosylceramide [Gb3, Galα (1-4)-Galβ (1-4)-Glcβ1-ceramide]. Shiga toxins are implicated in bloody diarrhea and hemorrhagic colitis in humans, which may lead to fatal systemic complications. Gb3 is overexpressed in membranes of numerous tumor cells, therefore, STxB binding to Gb3 receptors may be useful in cancer cell imaging.

Stato fisico

Supplied as a solution in 0.01 M phosphate buffered saline pH 7.4 and 15 mM sodium azide as a preservative.

Stoccaggio e stabilità

For continuous use, store at 2–8 °C protected from light for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilution samples should be discarded if not used within 12 hours. Protect from prolonged exposure to light.

Altre note

In order to obtain best results in different techniques and preparations we recommend determining optimal working concentration by titration test.

Esclusione di responsabilità

Unless otherwise stated in our catalog, 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 3


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Shiga toxins 1 and 2 translocate differently across polarized intestinal epithelial cells
Hurley BP, et al.
Infection and Immunity, 67(12), 6670-6677 (1999)
Nikolai Engedal et al.
Microbial biotechnology, 4(1), 32-46 (2011-01-25)
Shiga and the Shiga-like toxins are related protein toxins produced by Shigella dysenteriae and certain strains of Escherichia coli. These toxins are composed of two non-covalently attached, modular parts: the A moiety (StxA) containing the enzymatically active A1 fragment, and
M Jacewicz et al.
The Journal of experimental medicine, 163(6), 1391-1404 (1986-06-01)
A glycolipid that specifically binds shigella toxin was isolated from both HeLa cells and rabbit jejunal mucosa and identified as globotriaosylceramide (Gb3) by its identical mobility on HPTLC to authentic erythrocyte Gb3. Toxin also bound to a band tentatively identified
N A Strockbine et al.
Journal of bacteriology, 170(3), 1116-1122 (1988-03-01)
The structural genes for Shiga toxin, designated stx A and stx B, were cloned from Shigella dysenteriae type 1 3818T, and a nucleotide sequence analysis was performed. Both stx A and stx B were present on a single transcriptional unit
Shiga toxin and its use in targeted cancer therapy and imaging
Engedal N, et al.
Microbial Biotechnology, 4(1), 32-46 (2011)

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