Recombinant Gra1, Toxoplasma gondii

Synonyms

p24, dense granule protein 1

Description

Recombinant Toxoplasma gondii Gra1 is expressed in E. coli as a monomeric, non-glycosylated polypeptide chain consisting of 175 amino acids with a molecular mass of 18600 Da. The product represents the complete sequence of the mature Gra1, but lacks the signal peptide of the native protein.

Specifications

• Source: Genetically engineered Escherichia coli
• Stabilizers: None
• Preservatives: None
• Diluent: Antigen specific solution, does not contain detergents, denaturants (e.g. urea, GmHCl) or reductants. Antigen lots in PBS are prepared on request only.
• Purification: Ion Exchange Chromatography
• Purity: 98%, analysed by SDS-PAGE (reducing and non-reducing) followed by Coomassie-Blue staining and immunoprobing of Western blotted proteins with anti-E.coli serum (DAKO)
• Endotoxin: Not determined
• Protein concentration: Determined spectrophotometrically at 280nm (ext. coeff. 3840) and densitometrically by Advanced Image Data Analyzer software (Raytest) in relation to BSA standards

Quality Control

The integrity of the plasmid is controlled by restriction analysis and DNA sequencing. The expression product is characterized by N-terminal protein sequencing, SDS-PAGE (app. m.w.) and immunodetection of the Western blotted protein. In addition, correct reactivities compared to previous antigen lots with defined human and animal sera (negative, low, medium and high positive) are mandatory.

Storage and Shelf Life

At -80°C 10 years from the date of production
Avoid repeated freeze-thaw cycles

Article No.

95906, Toxoplasma protein GRA1, 1.5 ml

For use in laboratory animals or in in vitro research only. The product must not be used in humans.

The expiration date is based on SDS-PAGE and Westernblotting and valid only for these applications. The proteins suitability for any other use has to be validated for each individual application. No other warranties of any kind are made, expressed or implied, including, but not limited to, the warranties of fitness for a particular purpose and merchantability.

Produktinformation

Product Information | Toxoplasma protein GRA1

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