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Enterohemorrhagic E. coli (EHEC) stx2B / Shiga toxin II subunit B Antibody, Mouse MAb

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E. coli STX2B Antibody Product Information
Immunogen:Recombinant Enterohemorrhagic E. coli (EHEC) STX2B protein (Catalog#40019-E08E)
Clone ID:13
Ig Type:Mouse IgG1
Formulation:0.2 μm filtered solution in PBS with 5% trehalose
Preparation:This antibody was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with purified, recombinant Enterohemorrhagic E. coli (EHEC) STX2B (Catalog#40019-E08E; Q93EY4; Met 1-Asp 89). The IgG fraction of the cell culture supernatant was purified by Protein A affinity chromatography.
E. coli STX2B Antibody Usage Guide
Specificity:Enterohemorrhagic E. coli (EHEC) STX2B
No cross-reactivity in ELISA with
E.coli cell lysate

ELISA: 0.5-1 μg/mL

This antibody can be used at 0.5-1 μg/mL with the appropriate secondary reagents to detect Enterohemorrhagic E. coli (EHEC) STX2B. The detection limit for Enterohemorrhagic E. coli (EHEC) STX2B is approximately 0.039 ng/well.

Storage:This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free.
Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Other STX2B Antibody Products
stx2B / Shiga toxin II subunit B Background

E. Coli STX2B is a subunit of Stx2. Stx2, together with Stx1, formed a family of related toxins which are known as shiga toxins. Shiga toxins are mainly produced by the bacteria S. dysenteriae and the Shigatoxigenic group of Escherichia coli, which includes serotypes O157:H7, O104:H4, and other enterohemorrhagic E. coli (EHEC). A total of 3222 outbreak cases (including 39 deaths) have been reported in northern Germany in May through June 2011. The outbreak strain was typed as an enteroaggregative Shiga-toxin–producing E. coli O104:H4, producing extended-spectrum beta-lactamase. The toxin has two subunits—A and B. E. Coli STX2B is the B subunit. It is a pentamer that binds to specific glycolipids on the host cell, specifically globotriaosylceramide. Following this, the A subunit is internalised and cleaved into two parts. Stx2 has been found to be approximately 400 times more toxic (as quantified by LD50 in mice) than Stx-1. The Stx1 and Stx2 B subunits form a pentameric structure that binds to globotriaosylceramidereceptors on eukaryotic cells and promotes endocytosis

E. coli stx2B / Shiga toxin II subunit B References
  • Obata F. et al. (2008) Shiga Toxin 2 Affects the Central Nervous System through Receptor Globotriaosylceramide Localized to Neurons. J Infect Dis. 198 (9): 1398-406.
  • Tironi-Farinati C. et al. (2010) Intracerebroventricular Shiga toxin 2 increases the expression of its receptor globotriaosylceramide and causes dendritic abnormalities. J Neuroimmunol. 222 (1-2): 48-61.
  • Asakura H. et al. (2001) Phylogenetic diversity and similarity of active sites of Shiga toxin (stx) in Shiga toxin-producing Escherichia coli (STEC) isolates from humans and animals. Epidemiol Infect. 127 (1): 27-36.
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