NFKB1 Protein, Human
SKU: 45059021943

NFKB1 Protein, Human

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Description

NFKB1 Protein, HumanProduct Specification Species Human Synonyms Nuclear factor NF kappa B p105 subunit, DNA binding factor KBF1, EBP 1, Nuclear factor of kappa light polypeptide gene enhancer in B cells 1 Accession P19838 Amino Acid Sequence Met1 Gly434 Expression System E. coli Molecular Weight 50 55 kDa (Reducing) Purity >95% by SDS PAGE & HPLC. Endotoxin <0. 1EU g Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized powder Storage Buffer 20mM Tris,

Product Specification


Species Human
Synonyms Nuclear factor NF-kappa-B p105 subunit, DNA-binding factor KBF1, EBP-1, Nuclear factor of kappa light polypeptide gene enhancer in B-cells 1
Accession P19838
Amino Acid Sequence

Met1-Gly434

Expression System E.coli
Molecular Weight

50-55 kDa (Reducing)

Purity >95% by SDS-PAGE & HPLC.
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized powder
Storage Buffer

20mM Tris, 150mM NaCl, pH8.0

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

Cell. 2008 Feb 8;132(3):344-62.
Nat Rev Cancer. 2012 Jan 19;12(2):121-32.

Background

The NFKB1 gene, located on human chromosome 4q24, encodes the nuclear factor NF-κB p105 subunit (also termed EBP-1), a 105 kDa precursor protein that undergoes proteasome-mediated processing to generate the mature p50 subunit. NFKB1 functions as a pleiotropic transcription factor ubiquitously expressed across nearly all human cell types, serving as the terminal effector of diverse signal transduction cascades initiated by inflammatory cytokines, pathogens, oxidative stress, and mitogenic stimuli. The protein exhibits dual functional roles: (1) cytoplasmic sequestration of NF-κB complexes through its ankyrin repeat-rich C-terminal domain, and (2) generation of the DNA-binding p50 subunit that forms homodimers or heterodimers with Rel family members (e.g., p65/RELA) to regulate transcription of genes governing immune responses, inflammation, cell proliferation, survival, and apoptosis. NFKB1 activation involves IκB kinase (IKK)-mediated phosphorylation and degradation of inhibitory IκB proteins, enabling nuclear translocation of NF-κB dimers and binding to κB enhancer elements in target gene promoters.

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Exchange/Return Notes
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SKU: 45059021943

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4.2 ★★★★★
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C
Verified Purchase
CakeorDeath
Charlottesville, US
★★★★★ 5
Excellent product, but keep it away from chewers.
Style: 2.5" Ball
This is a very strong and effective launcher and could have lasted a very long time had my 9 month old not chewed the ball claw end off. I will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
C
Verified Purchase
Cranberry
Houston, US
★★★★★ 5
Our Dog Loves This Ball Thrower So Much
Style: 2.5" Ball
Works excellent for dogs that like to fetch! Our family dog loves this toy. He will bark and jump as soon as he sees us pick it up. The dog next door to us gets excited when he sees us play with our dog with this dog ball thrower. Its that good for dogs who love to fetch and run. Perfect for the young and elderly to play fetch with a pet dog. If you have back or shoulder problems works very well. You don't have to bend down and pick up a slobbery ball. Nope you use this to pick up, grip up and grab the ball. Wish every dog could have this ball thrower in their lives. It has changed the way we play fetch with our dog.
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Reviewed in the United States on August 5, 2025
J
Verified Purchase
Jean H.
Bozeman, US
★★★★★ 4
Good Pet Ball Launcher
Style: 2.5" Ball
I bought to throw balls for my Aussie. He does not like to tennis ball that came with it and chewed it up in less than one play time. The launcher seems to be of good quality and works well. We bought different balls made for launchers that work well.
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Reviewed in the United States on October 24, 2025
A
Verified Purchase
Amazon Customer
Birmingham, US
★★★★★ 5
Must-Have for Dog Owners (Whow have dogs that like to fetch)
Style: 2.5" Ball
Soon as this launcher arrived I went outside with the dogs to try it out. Long story short: This is a great fetch toy. I am able to launch the ball pretty far with little to no effort, and picking the ball back up is as easy as grabbing it with my own hand. The toy itself is very sturdy, so much so this is the only fetch-toy I'll ever have to buy. Considering how durable it is, I don't think I'll ever need to buy a replacement. I believe Chuck-It is the most popular option, and because this is the first fetch-toy I purchased, I can't really compare it to anything else. A few outlier reviews said the ball was difficult to launch, and I have to disagree. It has been so easy to use I can't possibly see what the problem is. And no, upper body strength is not a factor as I virtually have none. People can get great distance (Half the length of a football field by my eye) in one simple, easy motion. And if other products can launch the ball farther, so what? How far is far enough? Is your dog going to throw a fit because it went 40 meters instead of 50? No. They will not. For anyone upset this toy doesn't launch far enough, ask yourself this: Is the toy for their dog? Or the human who bought it? The bottom line is this: It feels like it's built to last, it's inexpensive, and it does what it is supposed to do. So long as a toy is "good enough" I don't see the point in splitting hairs and trying to determine which fetch toy is the absolute best. Saying it's good enough is a bit misleading though. I can't imagine how a dog toy like this could be any better. It's a must-have for any dog owner. Unfortunately, only one of my pups likes to fetch...
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Reviewed in the United States on January 6, 2020
K
Verified Purchase
K. Quaintance
Grantham, US
★★★★★ 5
Works Like a Charm!
Style: 2.5" Ball
WoW!! This thing is pretty cool! It can pick the ball up off the ground - and with little effort - It can throw the ball 3X Higher and Further than I ever could! It wont hurt my elbow or wrist ( way better than before when I was wearing myself out ) I don’t know how I ever got along without it!! It's a must have if your dog loves playing ball. :-) Update: I've had this For 7 Months Now- it looks and works Great just like the day I bought it- Thumbs up!
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Reviewed in the United States on September 29, 2024

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