SKU: 19401478759

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: 19401478759

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4.2 ★★★★★
Based on 17 reviews
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C
Verified Purchase
César
Alexandria, US
★★★★★ 5
Durable toy!
Size: Small, Color: Textured Ring, Size: Small, Color: Textured Ring
Great toy for my beautiful Canela, she found it fun to play and chew all day long, the material is very strong, she could not destroy it, I did not smell beef or meat.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
R
Verified Purchase
Rachael
Chelsea, US
★★★★★ 5
As durable as expected.
Size: Large, Color: Femur Bone, Size: Large, Color: Femur Bone
My dog loves it—more than any other bone she’s ever had. It’s not quite as durable as regular nylabone, but we expected that. This photo was taken after around 2 hours of super aggressive chewing by a very big German shepherd. It has no discernible smell, but obviously it has a flavor because she doesn’t want to put it down even for trips outside. It’s soft enough that it doesn’t cause that “are their teeth breaking?!” sound that a lot of offbrand nylon chews have. The classic femur shape is perfect. It’s the easiest shape for her to hold naturally. All around, perfect dog chew.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
V
Verified Purchase
Vail-Marie Kendall
Whiting, US
★★★★★ 4
Heavy duty chewing, not heavy duty dropping
Size: X-Large, Color: Textured Ring
My super chewer loved this toy, great shape, provided long lasting entertainment. However, when he dropped it from his mouth onto our epoxy flooring (not a far drop as he’s only 50lbs) one chunk broke clean off at the 2 smaller joints. Although we kept the larger piece for a while, a similar drop a week later broke it again. Considering this is fairly inexpensive, I wasn’t expecting it to be indestructible. It’s just strange how it broke. Will probably buy again to test one more time.
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Reviewed in the United States on March 9, 2026
C
Verified Purchase
Charlene
Grantham, US
★★★★★ 5
My dog loves these things
Size: Large, Color: Femur Bone
My dog loves these things. They don't smell at all. It was a great price. It's big enough for my Frenchie. It's pretty durable but he is able to gnaw it rough so I do have to replace them periodically.
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Reviewed in the United States on March 24, 2026
J
Verified Purchase
Joe & Laura
West Palm Beach, US
★★★★★ 5
Doggo Approved
Size: X-Large, Color: Textured Ring, Size: X-Large, Color: Textured Ring
About as indestructible as it gets. It's just very hard molded material. I always make sure to wash the dog toys before letting them play, who knows where they come from. Picture is after hours/days of the built playing with it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026

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