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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Jayanth
Birmingham, US
★★★★★ 5
Love them!
Color: Knot Silver
Such a perfect pair of earrings! Loved how light it was to wear all day. Will be buying more from Heaven Mayhem!
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Reviewed in the United States on January 7, 2026
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kimberly
Louisville, US
★★★★★ 5
Buy Them
Color: Knot Gold with Silver
Absolutely beautiful! Buy for a gift or yourself. They are light weight and look very expensive!
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Reviewed in the United States on January 10, 2026
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ROBIN FINDLEY
Omaha, US
★★★★★ 5
Love!
Color: Knot Gold with Silver
These were a Christmas gift for my daughter. She absolutely loves them!!
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Reviewed in the United States on April 25, 2026
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E1976
Massapequa, US
★★★★★ 5
Beautiful earrings
Color: Knot Gold, Color: Knot Gold
Absolutely love it ! High end quality and very light weight without feel cheap ! Will buy the 2 tone too.
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Reviewed in the United States on August 4, 2025
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Nicole
Natrona Heights, US
★★★★★ 3
So so
Color: Knot Gold with Silver, Color: Knot Gold with Silver
I really like these earrings, contemplated buying them because of all the mixed reviews. I agree with others for $100 earrings the packaging is not good, not what you would expect for the price point, super cheap no dust bag. You Honeslty could probably get better packaging on temu. Earrings are nice, light weight on the ear and I really like the earring backs. Bought these on promo for $59 would not buy them full price.
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Reviewed in the United States on October 28, 2025

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