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Description
IL-28B/IFN-λ3 Protein, HumanProduct Specification Species Human Synonyms Interferon lambda 3; IFN lambda 3; Cytokine Zcyto22; Interleukin 28B (IL 28B); Interleukin 28C (IL 28C) Accession Q8IZI9 Amino Acid Sequence Val22 Val196, with C terminal 8*His Expression System HEK293 Molecular Weight 25 kDa (Reducing) Purity >95% by SDS PAGE and HPLC. Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH7. 4 Reconstitution
Product Specification
| Species | Human |
| Synonyms | Interferon lambda-3; IFN-lambda-3; Cytokine Zcyto22; Interleukin-28B (IL-28B); Interleukin-28C (IL-28C) |
| Accession | Q8IZI9 |
| Amino Acid Sequence | Val22-Val196, with C-terminal 8*His |
| Expression System | HEK293 |
| Molecular Weight | 25 kDa (Reducing) |
| Purity | >95% by SDS-PAGE and HPLC. |
| Endotoxin | <0.1EU/μg |
| Conjugation | Unconjugated |
| Tag | His Tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | PBS, pH7.4 |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage | · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
| Reference | Genetic variation in IL28B and spontaneous clearance of hepatitis C virus. Nature. 2009;461(7265):798-801. |
Background
Interferon lambda 3 (IFN-λ3), also known as interleukin-28B (IL-28B), is a type III interferon that plays a crucial role in the innate immune response against viral infections. IFN-λ3 is produced in response to viral stimuli and exerts potent antiviral effects by inducing the expression of interferon-stimulated genes (ISGs) that inhibit viral replication and spread. Similar to other type III interferons, IFN-λ3 signals through the IFN-λ receptor complex, which consists of IL-10R2 and IL-28Rα subunits, leading to the activation of downstream signaling pathways involved in antiviral defense. IFN-λ3 has been implicated in the immune response to various viral infections, including hepatitis C virus (HCV) and influenza virus, and is considered a promising therapeutic target for the treatment of viral diseases.
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