SKU: 54870492938

TNF-α Protein, Human

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Description

TNF-α Protein, HumanProduct Specification Species Human Synonyms TNF , Cachectin, Tumor Necrosis Factor Alpha, TNFSF1A Accession P01375 Amino Acid Sequence Val77 Leu233, with N terminal 8*His MHHHHHHHHVRSSSRTPSDKPVAHVVANPQAEGQLQWLNRRANALLANGVELRDNQLVVPSEGLYLIYSQVLFKGQGCPSTHVLLTHTISRIAVSYQTKVNLLSAIKSPCQRETPEGAEAKPWYEPIYLGGVFQLEKGDRLSAEINRPDYLDFAESGQVYFGIIAL Expression System E. coli Molecular Weight 18. 5kDa Purity >95% by SDS PAGE Endotoxin <1EU g Conjugation

Product Specification


Species Human
Synonyms TNF-α, Cachectin, Tumor Necrosis Factor-Alpha, TNFSF1A
Accession P01375
Amino Acid Sequence

Val77-Leu233, with N-terminal 8*His MHHHHHHHHVRSSSRTPSDKPVAHVVANPQAEGQLQWLNRRANALLANGVELRDNQLVVPSEGLYLIYSQVLFKGQGCPSTHVLLTHTISRIAVSYQTKVNLLSAIKSPCQRETPEGAEAKPWYEPIYLGGVFQLEKGDRLSAEINRPDYLDFAESGQVYFGIIAL

Expression System E.coli
Molecular Weight

18.5kDa

Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer

20mM Tris, 150mM NaCl, 2mM TCEP, pH8.5

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、Hector J. et al. (2007) TNF-alpha alters visfatin and adiponectin levels in human fat. Horm Metab Res. 39(4): 250-255.

2、Berthold-Losleben M. et al. (2008) The TNF-alpha System: Functional Aspects in Depression, Narcolepsy and Psychopharmacology. Curr Neuropharmacol. 6(3): 193-202.

Background

Tumor necrosis factor α (TNF alpha) is an effective pro-inflammatory cytokine, which can kill and inhibit tumor cells. It is mainly produced by activated macrophages and can also be secreted by other types of cells, such as CD4+ lymphocytes, NK cells, neutrophils, mast cells, eosinophils and neuronal tissues. The members of TNF alpha family exert their cellular effect through two distinct surface receptors of the TNF receptor family, TNFR1 and TNFR2. The pleiotropic biological effects of TNF can be attributed to its ability to simultaneously activate multiple signaling pathways in cells. TNF-induced NF-κB activation promotes the growth, invasion and metastasis of cancer cells.

Shipping Notes
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Exchange/Return Notes
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SKU: 54870492938

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Sara Misthal
Lowell, US
★★★★★ 5
Work well
Love the price and love the product. They work well and help apply my foundation and sunscreen.
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Reviewed in the United States on May 3, 2026
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Kindle Customer
Bozeman, US
★★★★★ 5
Gorgeous
Color: Rose Gold
Gives the skin a gorgeous glow. Not oily at all. Simply beautiful!
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Reviewed in the United States on May 8, 2026
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stacey espinosa
Massapequa, US
★★★★★ 5
I even used it on my face
Color: Bronze Gold
I purchased this shimmer oil to use on my legs when I’m wearing a summer slip dress. I’m not always fond of how my legs look, but once I smoothed this over my lightly tanned skin—wow, what a difference. The glow is subtle yet so flattering. One day I forgot my highlighter, so I lightly dabbed this over my contour, brushed a tiny bit over my lips with chapstick on top, and it looked amazing. Now it’s my go-to beach look: a little shimmer on my arms and legs, a tad on my lips, a soft sweep across my eyelids, and a touch on my cheekbones. It gives me that effortless, radiant vibe that’s perfect for summer.
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Reviewed in the United States on September 10, 2025
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Joey English
Grantham, US
★★★★★ 3
Smells like crayons
Color: Bronze Gold
Stinks. Smells like covering yourself in melted crayons. Very cheap smelling. Left it on ny skin for an hour, then wiped with a rag and it immediately came right off. You're better off just getting bronzer.
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Reviewed in the United States on December 18, 2025
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Eva Venegas
Belleville, US
★★★★★ 4
Pretty shade; not super shiny
Color: Rose Gold
Pretty color! However- it will not be as pretty shiny as it looks like in the brand photos.
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Reviewed in the United States on April 13, 2026

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