Measured by its ability to neutralize Limitin inhibition of EMCV-induced cytopathy in the L‑929 mouse fibroblast cell line. Vogel, S. and M. Hogan (1995) in Current Protocols in Immunology. Ciocio, R. (ed); John Wiley & Sons, Inc. p. 6. 9. 1. The Neutralization Dose (ND50) is typically 1.5-7.5 ng/mL in the presence of 30 pg/mL Recombinant Mouse Limitin.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Limitin Inhibition of EMCV-induced Cytopathy and Neutralization by Mouse Limitin Antibody.
Recombinant Mouse Limitin (Catalog # 1535-LM) reduces the Encephalomyocarditis Virus (EMCV)-induced cytopathy in the L‑929 mouse fibroblast cell line in a dose-dependent manner (orange line), as measured by Resazurin (Catalog # AR002). Inhibition of EMCV activity elicited by Recombinant Mouse Limitin (30 pg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse Limitin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF597). The ND50 is typically 1.5-7.5 ng/mL.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Limitin, also known as IFN-zeta, is a 20 kDa glycoprotein that is secreted by T cells and bronchial and salivary duct epithelial cells. It inhibits B-lineage cell development but has little effect on myelopoiesis or erythropoiesis. Limitin binds to IFN-alpha / beta receptors and has potent antiviral activity. Mouse Limitin shares 32%, 26%, and 30% amino acid sequence identity with mouse IFN-alpha, mouse IFN-beta, and human IFN-omega, respectively.
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