Toxoplasma gondii, ROP4 RH2, Recombinant

Catalog No : USB-209253
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Product name Toxoplasma gondii, ROP4 RH2, Recombinant
Catalog No USB-209253
Supplier’s Catalog No 209253
Supplier US Biologicals
Source antigen Recombinant, E. coli
Reactivity
Cross reactivity
Applications
Molecular weight
Storage -20°C
Other names
Grade Highly Purified
Purity ~95% (10% PAGE, coomassie staining)
Form Supplied as a liquid in 25mM Tris-HCl, pH 8.0, 5mM glutathione, 1.5M urea, 50% glycerol.
Reactivity life 12 months
Note For reserch purpose only
Purity ~95% (10% PAGE, coomassie staining)
Description The life cycle of Toxoplasma gondii has two phases. The coccidia like takes place only in members of the Felidae family which makes these animals the parasite's primary host. The asexual part of the life cycle can take place in any warm-blooded animal, like other mammals (including felines) and birds. T. gondii constructing daughter scaffolds within the mother cell. In the intermediate hosts (including felines), the parasite invades cells, forming intracellular so-called parasitophorous vacuoles containing bradyzoites, the slowly replicating form of the parasit. Vacuoles form tissue cysts mainly within the muscles and brain. Since they are within cells, the host's immune system does not detect these cysts. Resistance to antibiotics varies, but the cysts are very difficult to eradicate entirely. Within these vacuoles T. gondii propagates by a series of binary fissions until the infected cell eventually bursts and tachyzoites are released. Tachyzoites are the motile, asexually reproducing form of the parasite. Unlike the bradyzoites, the free tachyzoites are usually efficiently cleared by the host's immune response, although some manage to infect cells and form bradyzoites, thus maintaining the infection. Source: Recombinant protein corresponding to Toxoplasma gondii, contains the ROP4 (RH2) immunodominant regions, is fused to Glutathione transferase, expressed in E. coli. Specificity: Immunoreactive with sera of Toxoplasma gondii-infected individuals. Applications: Suitable for use in ELISA, Western Blot and as an Antigen for detection of Toxoplasma gondii with minimal specificity problems. Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.