Recombinant non-structural protein 4 (NS4), HCV (sub-type 1B)

Synonyms

none

Description

Recombinant Hepatitis C virus NS4 is expressed in E. coli as a monomeric, non-glycosylated polypeptide chain consisting of 252 amino acids with a molecular mass of 26300 Da. The product represents amino acids 1617 to 1864 of the HCV polyprotein, covering the C terminal end (45 a.a.) of NS3, the complete NS4A sequence (54 a.a.) and the major part of NS4B (153 a.a. of the N-terminus).

Specifications

• Source: Genetically engineered Escherichia coli
• Stabilizers: None
• Preservatives: None
• Diluent: Antigen specific solution, contains 0.1% SDS. Antigen lots in PBS / 0.1% SDS 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. 32410) 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.

94304, HCV protein r-NS4, 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 | HCV protein r-NS4

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