SKU: 38679723537

FGF-R4/CD334 His Tag Protein, Human

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Description

FGF-R4/CD334 His Tag Protein, HumanProduct Specification Species Human Synonyms CD334 protein, JTK2 Protein, TKF Protein Accession P22455 1 Amino Acid Sequence Leu22 Asp369, with C terminal His Expression System HEK293 Molecular Weight 50 70 kDa(Reducing) Purity 95%, by SDS PAGE under reducing conditions Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH7. 4, 5% trehalose Reconstitution Reconstitute at less than 1 mg

Product Specification


Species Human
Synonyms CD334 protein, JTK2 Protein, TKF Protein
Accession P22455-1
Amino Acid Sequence Leu22-Asp369, with C-terminal His
Expression System HEK293
Molecular Weight 50-70 kDa(Reducing)
Purity >95%, by SDS-PAGE under reducing conditions
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4, 5% trehalose
Reconstitution Reconstitute at less than 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.

Background

FGF-R4, fibroblast growth factor receptor 4, also known as CD334, protein tyrosine kinase. It is a member of the fibroblast growth factor receptor family. These receptor proteins play an important role in cell division, regulation of cell growth and maturation, angiogenesis, wound healing and embryonic development. FGF-R4 protein interacts with specific growth factors to transmit signals from the extracellular environment to the nucleus, which enables cells to divide, move or mature by turning on or off genes that help cells adapt to environmental changes. Although the exact function of FGF-R4 is still unclear, studies have shown that the gene is involved in muscle development and the maturation of osteocytes in the skull. The FGF-R4 gene may also play a role in the development and maintenance of specialized cells (called central cones) in the photosensitive layer (retina) at the back of the eye.

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SKU: 38679723537

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4.3 ★★★★★
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Pam’s Product Picks
Massapequa, US
★★★★★ 5
Good looking shirts. Will not disappoint.
Size: Large, Color: Carbon Heather
These shirts are a great quality. They wash great with no shrinkage. They are very comfortable based on my husband’s feedback. They look as advertised. The variation in colors were perfect. The size fits perfectly. My husband is an XL for the long sleeve but a L for the short sleeved Carhartt T-shirts. The neckline is comfortable. Would recommend to others and will be purchasing more.
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Reviewed in the United States on April 21, 2026
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DabbinDave
Chelsea, US
★★★★★ 5
good durable shirts
Size: 4X-Large, Color: Black
The Carhartt K87 pocket t-shirt is a classic for a reason. The heavyweight cotton material feels durable and high quality, making it great for both work and everyday wear. It holds up well over time and doesn’t feel flimsy like cheaper t-shirts. The loose fit is one of the standout features—it gives you plenty of room to move and stays comfortable even during long days. The chest pocket is a nice touch for small items, and the overall construction feels solid with minimal twisting after washing. Comfort-wise, it starts a bit stiff but softens up after a few washes, which is pretty typical for thicker cotton shirts. It’s also available in a wide range of colors, so it’s easy to grab a few and rotate them. The main downside is the fit can run large and slightly boxy, so you might want to size down depending on how you like your shirts to fit. Some people may also find the heavyweight fabric a bit warm in hot weather. Overall, it’s a reliable, long-lasting t-shirt that delivers great value for the price and is perfect if you want something durable and simple.
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Reviewed in the United States on April 12, 2026
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Candace Phillips
Birmingham, US
★★★★★ 5
Great quality item!
Size: XX-Large, Color: Black
Great quality & very durable! We love any product made by Carhartt! The size is always great, they do not shrink and the neckline does not stretch out easily, which makes for a great casual wear appearance!
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Reviewed in the United States on April 21, 2026
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Sam K
Chelsea, US
★★★★★ 5
Big but good shirt
Size: Small, Color: Carbon Heather
Pretty big for a men's small pretty much a medium but I shrank it down with heat and it's good now still pretty big but I like it
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Reviewed in the United States on May 12, 2026
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nabit
Louisville, US
★★★★★ 4
It’s ok
Size: XX-Large Tall, Color: Carbon Heather
The collar area felt kind of tight for him. The shirt is nice and long, but not thick.
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Reviewed in the United States on May 3, 2026

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