SKU: 63870987200

Fractalkine/CX3CL1 Protein, Human

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Description

Fractalkine/CX3CL1 Protein, HumanProduct Specification Species Human Synonyms C X3 C motif chemokine 1, CX3C membrane anchored chemokine, Neurotactin, Small inducible cytokine D1 Accession P78423 Amino Acid Sequence Gln25 Gly100 Expression System E. coli Molecular Weight 9kDa (Reducing) Purity 95% by SDS PAGE and HPLC Endotoxin <0. 1EU g Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized Powder Storage Buffer 20mM Tris, 300mM NaCl, pH8. 0 Reconstitution Reconstitute

Product Specification


Species Human
Synonyms C-X3-C motif chemokine 1, CX3C membrane-anchored chemokine, Neurotactin, Small-inducible cytokine D1
Accession P78423
Amino Acid Sequence Gln25-Gly100
Expression System E.coli
Molecular Weight 9kDa (Reducing)
Purity >95% by SDS-PAGE and HPLC
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer 20mM Tris, 300mM 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

Pan, Y. et al. (1997) Nature 387:611.
Bazan J.F. et al. (1997) Nature 385:640.
Mackay, C.R. (1997) Current Biology 7:R384.

Background

CX3CL1, also named neurotactin, is a novel chemokine identified through bioinformatics. CX3CL1 has a unique C-X3-C cysteine motif near the amino-terminus and is the first member of a fourth branch of the chemokine superfamily. Unlike other known chemokines, CX3CL1 is a type 1 membrane protein containing a chemokine domain tethered on a long mucin-like stalk. Human CX3CL1 cDNA encodes a 397 amino acid (aa) residue membrane protein with a 24 aa residue predicted signal peptide, a 76 aa residue chemokine domain, a 241 aa residue stalk region containing 17 degenerate mucin-like repeats, a 19 aa residue transmembrane segment and a 37 aa residue cytoplasmic domain. The extracellular domain of human CX3CL1 can be released, possibly by proteolysis at the dibasic cleavage site proximal to the membrane, to generate soluble CX3CL1. CX3CL1 mRNA has been detected in various tissues including the brain and heart. The expression of CX3CL1 was also reported to be up-regulated in endothelial cells and microglia by inflammatory signals. Membrane-bound CX3CL1 has been shown to promote adhesion of leukocytes. The soluble chemokine domain of human CX3CL1 was reported to be chemotactic for T cells and monocytes while the soluble chemokine domain of mouse CX3CL1 was reported to chemoattract neutrophils and T-lymphocytes but not monocytes. The gene for human CX3CL1 has been mapped to chromosome 16q.

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SKU: 63870987200

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Nicky Goldsmith
Lexington, US
★★★★★ 5
Five stars for BOKA without hesitation.
Size: Pack of 1, 4 Ounce, Set name: A. Ela Mint
I have tried a lot of natural toothpastes over the years and I can honestly say that Boka completely surprised me in the best possible way. From the very first use it felt like I had finally found a toothpaste that balances modern science with a clean ingredient philosophy. You will not be disappointed. The standout ingredient here is nano hydroxyapatite, which is the same mineral that naturally makes up tooth enamel. That immediately caught my attention because instead of simply masking dental issues it actually supports remineralization. After learning more about nano hydroxyapatite and how it interacts with enamel I felt confident giving this toothpaste a real trial. The texture is smooth and creamy and it spreads easily across the teeth. Some fluoride free toothpastes can feel chalky or thin but this one feels refined and well formulated. It produces a gentle foam that feels pleasant while brushing but never overwhelming. The flavor is another area where this toothpaste shines. It is refreshing without being harsh or overly minty. My mouth feels clean and balanced after brushing rather than blasted with artificial intensity. That subtle freshness actually lasts much longer than I expected. After about two weeks of consistent use I started noticing that my teeth felt smoother throughout the day. That polished feeling you normally get right after a dental cleaning lasted longer than usual. My teeth also appeared brighter which was a welcome bonus. Another thing I appreciate is the ingredient transparency. There are no questionable additives and it is completely fluoride free which is important for people who prefer alternatives that still support enamel health. Knowing that nano hydroxyapatite is widely used in advanced dental care products in other parts of the world made this even more compelling. The packaging is clean and modern and the tube dispenses easily without making a mess on the cap. It feels like a premium product from start to finish. What really impressed me is how well this toothpaste balances effectiveness, comfort, and thoughtful formulation. It manages to feel gentle while still leaving my teeth incredibly clean and refreshed. If you are looking for a high quality fluoride free toothpaste that focuses on enamel support and a healthier approach to oral care then I highly recommend giving this one a try. It has absolutely earned a permanent place in my daily routine and it is one of the few natural toothpastes I genuinely look forward to using every day.
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Reviewed in the United States on March 12, 2026
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Mary
Dallas, US
★★★★★ 5
Great toothpaste.
Size: Pack of 1, 4 Ounce, Set name: B. Whitening
This is by far really great toothpaste. I can tell the difference in the color of my teeth. And sometimes my teeth are kinda sensitive to harsh toothpaste. But this is good for sensitive teeth. And minty flavor is not to strong either. Try it. I hope it works for you as well as It does for me. 🤗
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Reviewed in the United States on May 13, 2026
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Elsviel
Grantham, US
★★★★★ 4
Gentle and Pleasant to Use
Size: Pack of 2, 1.3 Ounce, Set name: A. Ela Mint
This toothpaste feels gentle on sensitive teeth and has a clean, refreshing taste without being too strong. The texture is smooth, and it leaves my mouth feeling fresh after brushing. I also like that it uses nano hydroxyapatite instead of fluoride, which makes it an interesting alternative to traditional toothpaste. Overall, a good toothpaste for sensitive teeth and daily use.
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Reviewed in the United States on May 24, 2026
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Jani
Los Angeles, US
★★★★★ 5
Gentle and Fresh Everyday Toothpaste
Size: 4.2 Ounce (Pack of 1), Size: 4.2 Ounce (Pack of 1)
This Mysmile Misty Mint toothpaste is a great option for sensitive teeth. It feels gentle, leaves a clean and fresh minty taste, and doesn’t irritate at all. I like that it’s fluoride-free with natural ingredients, yet still helps keep my teeth looking brighter. Simple, effective, and perfect for daily use.
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Reviewed in the United States on April 17, 2026
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Witza Laguerre
Pawtucket, US
★★★★★ 5
Impressive Natural Toothpaste for Sensitive Teeth
Size: 4.2 Ounce (Pack of 1), Size: 4.2 Ounce (Pack of 1)
I’ve been using the MySmile Fluoride Free Toothpaste for a few weeks now, and I’m genuinely impressed. I wanted something that could help with sensitivity and enamel health without fluoride or harsh chemicals, and this formula really delivers.The nano-hydroxyapatite ingredient is a great alternative to fluoride it helps strengthen enamel and noticeably reduces sensitivity over time. My teeth feel smoother and cleaner after brushing, and I’ve noticed less discomfort when drinking cold water or eating sweets. The Misty Mint flavor is light, natural, and refreshing not overpowering or artificial. It leaves my mouth feeling fresh for hours, and since it’s SLS-free, it doesn’t cause any irritation or dryness. The texture is creamy, and it foams just enough to feel effective without being harsh. it’s made with natural ingredients, which gives me peace of mind about using it daily. The packaging feels clean and modern, and the 4.2oz size is perfect for travel or keeping on the counter. ✅ Great for sensitive teeth ✅ Fluoride-free & enamel-safe ✅ Fresh, natural mint flavor ✅ Gentle and effective clean If you’re looking for a non-toxic, sensitivity-friendly toothpaste that actually strengthens and brightens your teeth, MySmile is an excellent choice. Highly recommend!
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Reviewed in the United States on November 6, 2025

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