SKU: 1343191760

FGF-21 Protein, Human

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Description

FGF-21 Protein, HumanProduct Specification Species Human Synonyms Fibroblast growth factor 21 Accession Q9NSA1 Amino Acid Sequence His29 Ser209, with N terminal 6*His MHHHHHHPIPDSSPLLQFGGQVRQRYLYTDDAQQTEAHLEIREDGTVGGAADQSPESLLQLKALKPGVIQILGVKTSRFLCQRPDGALYGSLHFDPEACSFRELLLEDGYNVYQSEAHGLPLHLPGNKSPHRDPAPRGPARFLPLPGLPPALPEPPGILAPQPPDVGSSDPLSMVGPSQGRSPSYAS Expression System E. coli Molecular Weight 25 kDa(Reducing) Purity 97% by SDS PAGE & RP HPLC Endotoxin <1EU g Conjugation

Product Specification


Species Human
Synonyms Fibroblast growth factor 21
Accession Q9NSA1
Amino Acid Sequence

His29-Ser209, with N-terminal 6*His MHHHHHHPIPDSSPLLQFGGQVRQRYLYTDDAQQTEAHLEIREDGTVGGAADQSPESLLQLKALKPGVIQILGVKTSRFLCQRPDGALYGSLHFDPEACSFRELLLEDGYNVYQSEAHGLPLHLPGNKSPHRDPAPRGPARFLPLPGLPPALPEPPGILAPQPPDVGSSDPLSMVGPSQGRSPSYAS

Expression System E.coli
Molecular Weight

25 kDa(Reducing)

Purity

>97% by SDS-PAGE & RP-HPLC

Endotoxin <1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer

20mM Tris, 100mM NaCl, pH7.5

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.

Background

Fibroblast growth factor 21 (FGF-21) is a pleiotropic hormone considered as a major regulator of energy homeostasis. FGF-21 is mainly secreted by the liver, but it may also be expressed in skeletal muscle. In this sense, FGF-21 protein expression is induced by insulin in C2C12 myocytes, and FGF21 mRNA is upregulated by hyperinsulinemia in skeletal muscle in young healthy men. Moreover, it has been suggested that FGF-21 is a signal secreted by the skeletal muscle to communicate with adipose tissue under stress conditions. FGF21 has been shown to be a major regulator of hepatic lipid metabolism, with FGF-21 overexpressing mice being resistant to diet-induced obesity. Interestingly, recent studies suggest that FGF21 may exert anti-inflammatory actions in the pancreas, heart, and skeletal muscle. A reduction in the JNK and NF-κB signaling pathways has been proposed as the potential mechanism implicated in the FGF-21 anti-inflammatory effects.

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Exchange/Return Notes
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SKU: 1343191760

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4.8 ★★★★★
Based on 24 reviews
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R
Verified Purchase
roger mendes
Cuba, US
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
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Verified Purchase
xyz
Natrona Heights, US
★★★★★ 4
Quality shoe but with a slight squeak.
Size: 10 Wide, Color: Burgundy Polished Full Grain
Nice shoes with the classic Penny Loafer design. Fit was better than another brand I tried. Only reason not 5 starts is disappointment due to a slight squeak at times when walking.
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Reviewed in the United States on August 11, 2025
S
Verified Purchase
Steven D
Lake Worth, US
★★★★★ 5
Exact item ordered, quick delivery
Size: 9.5, Color: Black Polished Full Grain
I ordered these black Cole Haan penny loafers for casual wear with jeans, khakies, and even business casual with slacks and a jacket. They've always worked perfectly for these uses. The Cole Haan version is the most versatile and still meets my sophisticated look criteria. I wear a 9 1/2 M with almost all other shoes. I have found Cole Haan to run slightly wider and slightly shorter. This fit will work with thin and no socks and a little loose in width. . I'd likely order a 10 N next time. I tend to forget this but it runs consistent with me for Cole Haan. 5 stars for the shoe and service. My bad on the slightly off fit.
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Reviewed in the United States on January 8, 2025
H
Verified Purchase
Hugh62
Boise, US
★★★★★ 1
Poor quality control - maybe outlet store leftovers
Size: 11.5, Color: Burgundy Polished Full Grain
The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect. Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.
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Reviewed in the United States on July 21, 2025
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Verified Purchase
Fabric Crazy
Whiting, US
★★★★★ 5
Really nice shoes
Size: 9, Color: Black Polished Full Grain
My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.
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Reviewed in the United States on February 3, 2026

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