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
  • We offer a 30-day return/exchange service after receiving.
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SKU: 54870492938

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Rachel Isenburg
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★★★★★ 4
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Reviewed in the United States on May 17, 2026
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jessica n James mcaleavey
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★★★★★ 5
Just like the picture
Size: 7", Size: 7"
Super cute and fun my puppies love it! It’s one of their go to’s
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Reviewed in the United States on December 2, 2025
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Carlo
Louisville, US
★★★★★ 1
Not recommended
Size: 7"
Terrible.. It didn't last 20 min.smh
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Reviewed in the United States on June 7, 2026
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Sharon C
Lowell, US
★★★★★ 5
Enjoyed by puppy
Excellent puppy teether. Stands up to games of tug-o-war, satisfies the need for chewing on the "bone" and she likes it when it's been cooled. I wet the fabric part before popping it in the fridge. So far, it's held up well to her sharp puppy teeth. Definitely a repeat purchase item.
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Reviewed in the United States on October 21, 2025
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Customer
Natrona Heights, US
★★★★★ 5
Puppy is obsessed, so are my adult dogs!
These were a life saver while my puppy was teething. He absolutely LOVED these and somehow the little cloth attached to it held up extremely well. I'm not sure if it was the textures or the flavor/scent but this was by far his favorite toy. He's 6 months now and will always run to this. Our adult dogs have accidentally gotten ahold of these a few times and it holds up well to them too (thankfully). Super soft and great to also throw in the freezer to soothe their teeth while teething. This is a great value and if it's something that keeps the pup occupied, I'm all for it!
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Reviewed in the United States on November 14, 2022

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