SKU: 7624033020

IL-29/IFN-λ1 Protein, Human

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Description

IL-29/IFN-λ1 Protein, HumanProduct Specification Species Human Synonyms IL29, IFNL1, IFN1, Interleukin 29, IFN lambda 1 Accession Q8IU54 Amino Acid Sequence Gly20 Thr200, with C terminal His Tag Expression System HEK293 Molecular Weight 30 35kDa(Reducing) Purity 95% by SDS PAGE Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH 7. 4 Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in ultrapure water after rapid

Product Specification


Species Human
Synonyms IL29, IFNL1, IFNλ1, Interleukin-29, IFN lambda 1
Accession Q8IU54
Amino Acid Sequence Gly20-Thr200, with C-terminal His Tag
Expression System HEK293
Molecular Weight

30-35kDa(Reducing)

Purity >95% by SDS-PAGE
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH 7.4
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

1.Hidese S. Search for cerebrospinal fluid biomarkers in patients with major psychiatric disorders: Multiplex immunoassay findings and proximity extension assay prospects. Neuropsychopharmacol Rep. 2024 Apr 30.
2.Sakashita E, Nagatani K, Endo H, Minota S. Biomarker combination predicting imminent relapse after discontinuation of biological drugs in patients with rheumatoid arthritis in remission. PLoS One. 2024 Mar 21;19(3):e0299450.

Background

Interleukin-29, is a secreted protein which belongs to the IL-28 / IL-29 family, and is a cytokine with immunomodulatory activity. It is also known as cytokine Zcyto21, Interferon lambda-1, IFN-lambda-1, IFNλ1, IL-29 and IFNL1, and is highly similar in amino acid sequence to the IL-28, the other type III interferon. Human IL29 cDNA encodes a 200 amino acid (aa) residue precursor protein with a putative 19 aa signal peptide and a 181 aa mature protein, which is a monomer in solution. It shares 67% and 69% aa sequence identity with human IL28A and IL28B, respectively. IL-29 plays an important role in host defenses against microbes and its gene is highly upregulated in cells infected with viruses and also may play a role in antiviral immunity. Interleukin-29 / IL-29 up-regulates MHC class I antigen expression. It is a Ligand for the heterodimeric class II cytokine receptor composed of IL10RB and IL28RA. The ligand/receptor complex seems to signal through the Jak-STAT pathway.

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Exchange/Return Notes
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SKU: 7624033020

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Donna G
Whiting, US
★★★★★ 5
Seems like it provides good coverage
Size: 6 Fl Oz (Pack of 1)
I am very much liking this for the sunscreen properties. It should be noted that your face will be white and it's hard to meld into your natural skin tones. However I'm more concerned with something that works
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Reviewed in the United States on April 5, 2026
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Anarelys
Houston, US
★★★★★ 5
reliable everyday sunscreen
Size: 6 Fl Oz (Pack of 1)
this product goes on smoother than many mineral sunscreens I’ve tried and doesn’t leave an overly thick or greasy feeling on the skin. The protection lasts well during outdoor activities, and the water resistance makes it great for the beach, workouts, or long walks in the sun.
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Reviewed in the United States on May 20, 2026
K
Verified Purchase
Kenzie Martinez
Lowell, US
★★★★★ 4
I’ll lyk
Size: 6 Fl Oz (Pack of 1)
I’m skeptical to using it cause I used it once and I did break out but I will give it another try cause it’s supposed to be good for your skin we’ll see..
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Reviewed in the United States on June 4, 2026
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Ben McKinnon-Duggins
Alexandria, US
★★★★★ 1
Greasy and ineffective
Size: 6 Fl Oz (Pack of 1)
This sunscreen is so greasy that it just slides off your skin. I've used a ton several times and still gotten sunburn within an hour.
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Reviewed in the United States on May 25, 2026
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Joan
Cuba, US
★★★★★ 5
Great lotion!
Size: 6 Fl Oz (Pack of 1)
One of the very few daily body and face lotion that has no bad ingredients. Free of fragrance, dyes, parabens. It adds moisture without the greasy feel.
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Reviewed in the United States on May 7, 2026

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