SKU: 67498589406

IL-28B/IFN-λ3 Protein, Human

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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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SKU: 67498589406

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stiff Ola
Waukegan, US
★★★★★ 5
Good deal
Size: CA12377&CF12157
Easy to install and much cheaper than the dealership cost. Quality was good, also had installation instructions.
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Reviewed in the United States on May 26, 2026
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Alex
Lake Worth, US
★★★★★ 5
Perfect Fit for 2021 Honda Odyssey Elite
Color: CA12061
This engine air filter was a perfect fit for our 2021 Honda Odyssey Elite. Installation was quick and easy, popped right into place with no issues at all. The build quality looks great, and it feels just as solid as the factory filter it replaced. It’s always nice to find a reliable replacement part that fits exactly as it should. We drive a lot of gravel as well and this has held up well to those elements. Great value compared to dealership pricing. Will definitely purchase again when it’s time for the next replacement.
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Reviewed in the United States on February 19, 2026
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StandUpToTyranny
Fort Morgan, US
★★★★★ 5
Great quality and cost effective!
Color: CA12061
My mechanic says this is a great filter. They installed free (30 seconds) whereas Honda wanted $150 plus labor is it to install theirs. 🙄
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Reviewed in the United States on January 29, 2026
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Bill
Louisville, US
★★★★★ 5
Inexpensive alternative to dealer
Color: CA12061
Fits perfect!
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Reviewed in the United States on April 4, 2026
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JeffO
Dallas, US
★★★★★ 5
Top Shelf Quality!
Color: CA12061
This is superior to the OEM filter the Ridgeline comes with and at a significantly lower price than Honda will charge you for the replacement. This arrived promptly, packaged securely, fit precisely and by the time I'm getting around to this review, I've already driven 6-7,000 miles and I recently checked it out- perfect! I usually change these out around 7-8,000 miles and this filter is doing exactly what it's supposed to do and frankly, I think it will easily go 15,000 miles before needing replacement. IMHO, this is far superior to the Honda OEM air filter. This is a great filter and you won't be disappointed.
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Reviewed in the United States on February 18, 2025

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