SKU: 74139885740

NT-3 Protein, Human

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Description

NT-3 Protein, HumanProduct Specification Species Human Synonyms HDNF,Nerve growth factor 2,NGF 2,Neurotrophic factor,NTF3 Accession P20783 Amino Acid Sequence Tyr139 Thr257 YAEHKSHRGEYSVCDSESLWVTDKSSAIDIRGHQVTVLGEIKTGNSPVKQYFYETRCKEARPVKNGCRGIDDKHWNSQCKTSQTYVRALTSENNKLVGWRWIRIDTSCVCALSRKIGRT Expression System E. coli Molecular Weight 15kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <0. 1EU g Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized Powder

Product Specification


Species Human
Synonyms HDNF,Nerve growth factor 2,NGF-2,Neurotrophic factor,NTF3
Accession P20783
Amino Acid Sequence

Tyr139-Thr257 YAEHKSHRGEYSVCDSESLWVTDKSSAIDIRGHQVTVLGEIKTGNSPVKQYFYETRCKEARPVKNGCRGIDDKHWNSQCKTSQTYVRALTSENNKLVGWRWIRIDTSCVCALSRKIGRT

Expression System E.coli
Molecular Weight

15kDa (Reducing)

Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer 20mM Tris, 500mM 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

1. Elizabeth Hernández-Echeagaray (2020) Vitam Hor. 114:71-89. 

2. F Marmigère. (2001) Neuroendocrinology 74(1):43-54.

Background

Neurotrophin-3 (NT-3) belongs to a family of growth factors called neurotrophins whose actions are centered in the nervous system. The neurotrophin family includes nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), neurotrophin-4/5 (NT-4/5), neurotrophin-6(NT-6) and the recently cloned neurotrophin-7 Most of biological effects of neurotrophins are mediated by high affinity tyrosine kinase (Trk) receptors, although some of them require the binding to a low affini tyreceptor (p75LNTR). NGF binds to TrkA receptors, BDNF preferentially activates TrkB receptors, while NT-3 mainly interacts with TrkC receptors, and at lower affinity with TrkB receptors. NT-3 is structurally related to other neurotrophins like brain-derived neurotrophic factor. The expression of NT-3 starts with the onset of neurogenesis and continues throughout life. A wealth of information links NT-3 to the growth, differentiation, and survival of hippocampal cells as well as sympathetic and sensory neurons.

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SKU: 74139885740

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4.1 ★★★★★
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brisia
Port Orchard, US
★★★★★ 4
Not for sensitive skin
Size: 2.5 Fl Oz (Pack of 1)
I have combination skin, prone to acne, and sensitive skin. Even though this is labeled as non-comedogenic and best suited for oily skin, I still experienced acne because the consistency of the sunscreen is really thick. It makes it hard to blend (really hard) and upsets my skin. It also smells a lot like alcohol, more so than most sunscreens, even those from this brand. I bet it's good for some skins but it simply wasn't for me.
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Reviewed in the United States on May 7, 2026
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Caroline
Bozeman, US
★★★★★ 5
Finally!
Size: 2.5 Fl Oz (Pack of 1)
I have been looking for a sunscreen that does not breaks me out or irritate my eyes and this was perfect. I wash my face in the morning and I put this sunscreen on. I don't need to use moisturizer since this is enough. It does leave my skin glowy which I like but not greasy. I notice even my dark spots are fading but because I do use this everyday. My skin is tan and it does not leave a white cast. I love it. If you have acne prone skin, oily and sensitive give this a try.
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Reviewed in the United States on May 26, 2026
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LylaStylus
Natrona Heights, US
★★★★★ 5
Finally! An SPF Hubby will wear!
Size: 2.5 Fl Oz (Pack of 1)
I've bought my husband at least a dozen SPFs--everything from drugstore to premium brands--and he won't wear any of them. He's 64 years old with oily, extremely sensitive skin (rosacea and dermatitis), and a tendency to sweat a lot in the summer heat, as he's very active. As for SPF, he hates the white cast, how heavy it feels on his skin, and how his eyes burn when he sweats and the SPF gets in them. But I keep trying. Since Eucerin was the only SPF I was able to tolerate after radiation, I tried this one for him. It's the only one he's liked. There's some white cast initially but it settles quickly. He says the lotion doesn't feel heavy, hasn't caused any irritation or breakouts, and doesn't bother his eyes either. He actually wears this one!!! I'm thrilled! Thank you, Eucerin!
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Reviewed in the United States on May 23, 2026
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Rocio
Birmingham, US
★★★★★ 5
Oily skin
Size: 2.5 Fl Oz (Pack of 1)
My skin is oily so sometimes I try different sunscreen and my skin doesn’t approve . This one is my favorite ever
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Reviewed in the United States on May 3, 2026
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Huendy D.
Battle Creek, US
★★★★★ 5
Highly recommended!
I ’ve been using the Age Defense Face Sunscreen Lotion for a while now, and it has quickly become a staple in my skincare routine. The formula is lightweight, non-greasy, and absorbs quickly without leaving a white cast, making it perfect for everyday use. It provides broad-spectrum protection, shielding my skin from both UVA and UVB rays while also containing anti-aging ingredients that help keep my skin looking youthful and hydrated. One of the standout features is its moisturizing effect—it doesn’t dry out my skin or clog pores, making it suitable even for sensitive skin. I also appreciate that it layers well under makeup without pilling. The added antioxidants are a bonus, offering extra protection against environmental stressors. The only minor downside is that it has a slight scent, which might not be ideal for those who prefer fragrance-free products. However, the scent fades quickly and isn’t overpowering. Overall, this sunscreen is a great choice for anyone looking for reliable sun protection with added skincare benefits. It’s effective, comfortable to wear, and leaves the skin feeling soft and smooth.
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Reviewed in the United States on March 1, 2025

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