ELK Biotechnology Recombinant Human IFN alpha2b
E.coli 발현 시스템으로 생산된 재조합 인간 인터페론 알파2b 단백질로, 95% 이상 고순도 확보. 항바이러스 활성 검증 완료. 동결건조 형태로 제공되며, 재구성 및 보관이 용이. 다양한 IFN-α 변이 연구에 활용 가능.
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Recombinant Human IFN alpha2b
제품 설명
Recombinant Human Interferon Alpha-2b는 E.coli 발현 시스템을 통해 생산되며, Cys24-Glu188(Lys46Arg)을 포함하는 유전자 서열을 발현합니다.
제품 사양
| 항목 | 내용 |
|---|---|
| Product name | Recombinant Human IFN alpha2b |
| Description | Recombinant Human Interferon Alpha-2b is produced by our E.coli expression system and the target gene encoding Cys24-Glu188(Lys46Arg) is expressed. |
| Expression Host | E.coli |
| Accession | P01563 |
| Molecular weight | 19.4 kDa |
| Apparent molecular weight | 17 kDa (reducing conditions) |
| Other names | Interferon Alpha-2; IFN-Alpha-2; Interferon Alpha-A; LeIF A; IFNA2 |
| Formulation | Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.2 |
| Purity | Greater than 95% as determined by reducing SDS-PAGE |
| Endotoxin | Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test |
| Biological activity | Measured in antiviral assay using A549 human lung cancer cells infected with vesicular stomatitis virus (VSV). The ED50 for this effect is 5 ng/mL. |
| Redissolve | Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
| Storage | Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4–7°C for 2–7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months. |
| Delivery condition | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below. |
Background
At least 23 different variants of IFN-α are known. The individual proteins have molecular masses between 19–26 kDa and consist of proteins with lengths of 156–166 and 172 amino acids. All IFN-α subtypes possess a common conserved sequence region between amino acid positions 115–151 while the amino-terminal ends are variable. Many IFN-α subtypes differ in their sequences by only one or two positions. Naturally occurring variants also include proteins that are truncated by 10 amino acids at the carboxyl-terminal end.
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