Anti-Shrimp tropomyosin抗體說(shuō)明書(shū)
Catalog Number : Rs-0690M
Quantity size : 0.1ml （dilute with pH 7.4 0.01 M PBS or antibody diluent ）
Background: Shellfish hypersensitivity is amongst the most common food allergies. The major shellfish allergen was identified as tropomyosin. Here, we investigated the immediate hypersensitivity responses, IgE and cell-mediated immune response in mice sensitized with recombinant shrimp tropomyosin. Methods: Shrimp tropomyosin was cloned and expressed as a His-tagged fusion recombinant protein in Escherichia coli. Three- to 4-week-old BALB/c mice were sensitized by intragastric administration of recombinant tropomyosin （0.1 mg） plus cholera toxin （10 μg） on days 0, 12, 19 and 26 and challenged on day 33. Mice fed with phosphate-buffered saline plus cholera toxin were included as controls. Animals were monitored for immediate hypersensitive responses and tropomyosin-specific IgE over time. In addition, shrimp tropomyosin-specific CD4+ T cells, interleukin-4 and interferon-γ levels were determined from in vitro splenocyte cultures. A passive cutaneous anaphylaxis assay was also conducted. Results: Mice fed with shrimp tropomyosin developed swelling of the snout, increased scratching behavior and shrimp tropomyosin-specific IgE. Sera from tropomyosin-sensitized mice elicited vascular leakage in naïve mice in the passive cutaneous anaphylaxis assay. Shrimp tropomyosin-specific CD4+ T cell proliferations and elevated interleukin-4 over interferon-γ levels were evident in splenocyte cultures of tropomyosin-fed mice upon tropomyosin stimulation. In contrast, shrimp tropomyosin-specific IgE, CD4+ T cells and hypersensitive responses were absent in the control mice. Conclusion: We have generated a BALB/c model of shrimp allergy. This model provides a useful tool for evaluating the immunopathogenic mechanisms involved in shellfish hypersensitivity.
Anti-Shrimp tropomyosin抗體說(shuō)明書(shū)
Specificity : · anti-Shrimp tropomyosin is a rabbit monoclonal antibody unconjugated
·specific for Shrimp tropomyosin of hu, mo, rat, pig, cow
·epitope mapping near the N-terminal of Shrimp tropomyosin of human, mo, rat,
·use for western blotting, elisa, immunoprecipitation
and immunohistochemistry
· Protein G affinity chromatography purification, purity :>95%
· Isotype: IgG
· mol wt: 53kDa
Application: ·Western blotting 1:100-500
· Immunohistochemistry 1:100-500
· ELISA 1:500-1000
· Optimal working dilutions must be determined by the end user.
Storage: Store at –20 ºC for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20ºC. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody, the antibody is stable for at least two weeks at 2-4 ºC.
Important Note: This product as supplied is intended for research use only, not for use in
human, therapeutic or diagnostic applications.
Anti-Shrimp tropomyosin抗體說(shuō)明書(shū)
