SKU: 90416833969

LIF Protein, Porcine (Animal Free)

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Description

LIF Protein, Porcine (Animal Free)Product Specification Species Porcine Synonyms LIF; Leukemia Inhibitory Factor Protein; CDF Protein; DIA Protein; HILDA Protein; MLPLI Protein; D Factor; DIA; differentiation inhibitory activity; differentiation stimulating factor; Differentiation stimulating factor; Emfilermin; Melanoma derived LPL inhibitor; MLPLI Accession Q9GKZ8 Amino Acid Sequence Ser23 Phe202 Expression System E. coli Molecular Weight 19. 7 kDa (Reducing) Purity >95% by SDS PAGE

Product Specification


Species Porcine
Synonyms LIF; Leukemia Inhibitory Factor Protein; CDF Protein; DIA Protein; HILDA Protein; MLPLI Protein; D Factor; DIA; differentiation inhibitory activity; differentiation stimulating factor; Differentiation-stimulating factor; Emfilermin; Melanoma-derived LPL inhibitor; MLPLI
Accession Q9GKZ8
Amino Acid Sequence Ser23-Phe202
Expression System E.coli
Molecular Weight

19.7 kDa (Reducing)

Purity >95% by SDS-PAGE and HPLC.
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, 5% trehalose, PH7.4
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

Salas EM, et al. (2011) LIF, a Novel STAT5-Regulated Gene, Is Aberrantly Expressed in Myeloproliferative Neoplasms. Genes Cancer. 2 (5): 593-6.
Chodorowska G, et al. (2004) Leukemia inhibitory factor (LIF) and its biological activity. Ann Univ Mariae Curie Sklodowska Med. 59 (2): 189-93.
Garcia-Campana AM, et al. (2007) LIF detection of peptides and proteins in CE. Electrophoresis. 28 (1-2): 208-32.

Background

LIF (leukemia inhibitory factor, also known as CDF; DIA; MLPLI) is a pleiotropic glycoprotein belonging to the IL-6 family of cytokines. It is involved in growth promotion and cell differentiation of different types of target cells, influence bone metabolism, cachexia, neural development, embryogenesis, and inflammation. The first exon encoding the signal sequence is alternately spliced, resulting in LIF-D, LIF-M, and LIF‑T mRNAs that produce secreted, extracellular matrix‑associated, and intracellular forms, respectively. LIF has potent proinflammatory properties, being the inducer of the acute phase protein synthesis and affecting cell recruitment into the area of damage or inflammation. LIF is also one of the cytokines that are capable to regulate the differentiation of embryonic stem cells, hematopoietic, and neuronal cells. LIF binds to the specific LIF receptor (LIFR-α) which forms a heterodimer with a specific subunit common to all members of that family of receptors, the GP130 signal-transducing subunit. This leads to the activation of the JAK/STAT and MAPK cascades. Due to its polyfunctional activities, LIF is involved in the pathogenic events and development of many diseases of various origins.

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Exchange/Return Notes
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SKU: 90416833969

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4.2 ★★★★★
Based on 29 reviews
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Product Reviews
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Verified Purchase
Nana
Chelsea, US
★★★★★ 1
My Monster Dogs destroyed these balls
Color: Glow in the dark II, Size: Large
I was so excited to get two of these balls for my doodle puppies to have to play with . THEY DESTROYED THEM IN ALL OF TEN MINUTES. I don't believe that there was anything wrong with the balls. They were beautiful, high quality balls. Just not durable enough for my doodles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
D
Verified Purchase
Deborah Goellner
Massapequa, US
★★★★★ 3
Doesn't glow in the dark but my dog still enjoyed
Color: Glow in the dark Ⅳ, Size: Medium
Great
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Reviewed in the United States on May 4, 2026
K
Verified Purchase
KC
Natrona Heights, US
★★★★★ 5
Sturdy, well made, puppy & senior dog approved
Color: Glow in the dark I, Size: Medium
Pet approved !!!! Our puppy immediately grabbed it by the straps and took off!! It is well made and has handled some serious chewing in the last 24 hours. We love the glow in the dark because puppy playtime does not stop when it gets dark out!! It came with a pump and was very easy to assemble and inflate. This toy would be great for a pet owner that struggles with grasp & grip strength, the straps are absolutely genius.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
K
Verified Purchase
KennyR
Cuba, US
★★★★★ 5
Fun, Durable Ball, But Straps Could Be Tougher
Color: Glow in the dark I, Size: Large
I bought the QDAN Glow in the Dark Dog Toys Soccer Ball for my German Shepherd, who absolutely loves it. The glow-in-the-dark feature is great for evening play, adding an extra layer of fun to our outdoor interactions. The ball itself has proven to be remarkably durable, standing up well to the rough play that comes with a large, active dog. However, the straps did not fare as well. My GSD managed to bite through most of them relatively quickly. While this hasn’t stopped us from enjoying the ball, it does mean that some of the interactive potential of the toy is lost. The ball continues to be a hit on its own, thanks to its resilience and the glow feature that keeps my dog engaged. If the straps were as durable as the ball itself, this would be a perfect outdoor toy for energetic dogs. As it stands, it’s still a good purchase for anyone looking for a sturdy, engaging toy for their pet, especially if nighttime play is a routine.
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Reviewed in the United States on September 25, 2024
B
Verified Purchase
Beach Lover (Sue)
Omaha, US
★★★★★ 5
Pup loves this!
Size: 6 Inch, Color: Red
This soccer ball is so cute. My dog loves to play with these. The straps are durable, easy to pump up (they come with a pump), good value for the money since they tend to last awhile, at least for us. The straps are durable but could be an issue if your dog is an aggressive chewer. They stay pumped up for quite awhile and just need to be topped off once in awhile to keep the bounce there. We keep them outside even in the winter and they do just fine. HIghly recommend as a good play toy.
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Reviewed in the United States on December 16, 2025

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