Mouse/Rat FGF-21 Quantikine ELISA Kit MF2100: R&D Systems
  • Assay Type
    Solid Phase Sandwich ELISA
  • Format
    96-well strip plate
  • Assay Length
    4.5 hours
  • Sample Type & Volume Required Per Well
    Cell Culture Supernates (50 uL), Serum (25 uL), EDTA Plasma (25 uL), Heparin Plasma (25 uL)
  • Sensitivity
    13.4 pg/mL
  • Assay Range
    31.3 - 2,000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
  • Specificity
    Natural and recombinant mouse and rat FGF-21
  • Cross-reactivity
    < 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
  • Interference
    No significant interference observed with available related molecules.
Product Summary
The Quantikine Mouse/Rat FGF-21 immunoassay is a 4.5 hour solid-phase ELISA designed to measure FGF-21 in mouse or rat cell culture supernates, serum, and plasma. It contains E. coli-expressed recombinant mouse FGF-21 and antibodies raised against the recombinant factor. This immunoassay has been shown to accurately quantitate the recombinant mouse FGF-21. Results obtained using natural mouse or rat FGF-21 showed dose response curves that were parallel to the standard curves obtained using the Quantikine mouse kit standards. These results indicate that this kit can be used to determine relative mass values for natural FGF-21.

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
Cell Culture Supernates
Intra-Assay Precision Inter-Assay Precision
Standard Deviation5.249.619.76.6110.831

Serum, EDTA Plasma, Heparin Plasma
Intra-Assay Precision Inter-Assay Precision
Standard Deviation7.3513.525.28.911865.9


The recovery of FGF-21 spiked to levels throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Mouse Cell Culture Samples (n=6) 96 88-101
Mouse EDTA Plasma (n=4) 97 86-104
Mouse Heparin Plasma (n=4) 93 83-101
Mouse Serum (n=4) 95 83-103
Rat Cell Culture Samples (n=2) 91 87-95
Rat EDTA Plasma (n=4) 101 93-119
Rat Heparin Plasma (n=4) 97 94-104
Rat Serum (n=4) 100 93-108
To assess the linearity of the assay, samples spiked with high concentrations of FGF-21 in each matrix were diluted with the appropriate Calibrator Diluent and assayed.
Mouse/Rat FGF-21 Quantikine ELISA Kit
Mouse/Rat FGF-21 Quantikine ELISA Kit
Preparation and Storage
  • Storage
    Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: FGF-21
FGF-21 (Fibroblast Growth Factor 21) is a member of an FGF subfamily that also includes FGF-19 and FGF-23. FGF-19 subfamily members lack a heparin binding domain, enabling them to freely circulate as endocrine factors and diffuse within tissues. FGF-21 signals through Klotho beta in complex with FGF receptors. It regulates cellular metabolism including glucose uptake in adipocytes and cellular sensitivity to insulin. It is basally expressed in the pancreas, thymus, liver, and adipose tissue and is upregulated in liver, muscle, and fat in obesity and diabetes. FGF-21 also plays a role in cell survival and proliferation, mesenchymal stem cell differentiation, circadian rhythm, and controlling reproductive capacity.
    • Long Name
      Fibroblast Growth Factor 21
    • Entrez Gene IDs
      26291 (Human); 56636 (Mouse);
    • Alternate Names
      FGF21; FGF-21; fibroblast growth factor 21;
    Related Research Areas
    Assay Procedure
    Refer to the product for complete assay procedure.

    Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
    1.   Prepare all reagents, standard dilutions, and samples as directed in the product insert.
    2.   Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.

    3. 50 µL Assay Diluent
    4.   Add 50 µL of Assay Diluent to each well.

    5. 50 µL Standard, Control, or Sample
    6.   Add 50 µL of Standard, Control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.
    7.   Aspirate each well and wash, repeating the process 4 times for a total of 5 washes.

    8. 100 µL Conjugate
    9.   Add 100 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours.
    10.   Aspirate and wash 5 times.

    11. 100 µL Substrate Solution
    12.   Add 100 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. PROTECT FROM LIGHT.

    13. 100 µL Stop Solution
    14.   Add 100 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.

    R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

    18 Citations: Showing 1 - 10
    Filter your results:

    Sample Type
    1. CREBH-FGF21 axis improves hepatic steatosis by suppressing adipose tissue lipolysis
      Authors: Jong-Gil Park
      Sci Rep, 2016;6(0):27938.
      Species: Mouse
      Sample Type: Plasma
    2. Hyperlipidemia and hepatitis in liver-specific CREB3L3 knockout mice generated using a one-step CRISPR/Cas9 system
      Authors: Yoshimi Nakagawa
      Sci Rep, 2016;6(0):27857.
      Species: Mouse
      Sample Type: Plasma
    3. The Orphan Nuclear Receptor ERR? Regulates Hepatic CB1 Receptor-Mediated Fibroblast Growth Factor 21 Gene Expression
      PLoS ONE, 2016;11(7):e0159425.
      Species: Mouse
      Sample Type: Serum
    4. Preserving of Postnatal Leptin Signaling in Obesity-Resistant Lou/C Rats following a Perinatal High-Fat Diet
      PLoS ONE, 2016;11(9):e0162517.
      Species: Rat
      Sample Type: Plasma
    5. CREB3L3 controls fatty acid oxidation and ketogenesis in synergy with PPAR?
      Sci Rep, 2016;6(0):39182.
      Species: Mouse
      Sample Type: Plasma
    6. mTORC1 is Required for Brown Adipose Tissue Recruitment and Metabolic Adaptation to Cold
      Sci Rep, 2016;6(0):37223.
      Species: Mouse
      Sample Type: Plasma
    7. Intramyocardial Adipose-Derived Stem Cell Transplantation Increases Pericardial Fat with Recovery of Myocardial Function after Acute Myocardial Infarction
      Authors: Jong-Ho Kim
      PLoS ONE, 2016;11(6):e0158067.
      Species: Mouse
      Sample Type: Cell Culture Supernates
    8. Single ingestion of soy ?-conglycinin induces increased postprandial circulating FGF21 levels exerting beneficial health effects
      Authors: Tsutomu Hashidume
      Sci Rep, 2016;6(0):28183.
      Species: Mouse
      Sample Type: Serum
    9. Hepatic CREB3L3 controls whole-body energy homeostasis and improves obesity and diabetes.
      Authors: Nakagawa Y, Satoh A, Yabe S, Furusawa M, Tokushige N, Tezuka H, Mikami M, Iwata W, Shingyouchi A, Matsuzaka T, Kiwata S, Fujimoto Y, Shimizu H, Danno H, Yamamoto T, Ishii K, Karasawa T, Takeuchi Y, Iwasaki H, Shimada M, Kawakami Y, Urayama O, Sone H, Takekoshi K, Kobayashi K, Yatoh S, Takahashi A, Yahagi N, Suzuki H, Yamada N, Shimano H
      Endocrinology, 2015;155(12):4706-19.
      Species: Mouse
      Sample Type: Plasma
    10. A muscle-liver-fat signalling axis is essential for central control of adaptive adipose remodelling.
      Authors: Shimizu N, Maruyama T, Yoshikawa N, Matsumiya R, Ma Y, Ito N, Tasaka Y, Kuribara-Souta A, Miyata K, Oike Y, Berger S, Schutz G, Takeda S, Tanaka H
      Nat Commun, 2015;6(0):6693.
      Species: Mouse
      Sample Type: Plasma
    11. Hepatic mitogen-activated protein kinase phosphatase 1 selectively regulates glucose metabolism and energy homeostasis.
      Authors: Lawan A, Zhang L, Gatzke F, Min K, Jurczak M, Al-Mutairi M, Richter P, Camporez J, Couvillon A, Pesta D, Roth Flach R, Shulman G, Bennett A
      Mol Cell Biol, 2015;35(1):26-40.
      Species: Mouse
      Sample Type: Serum
    12. Activation of AMPKalpha2 is not crucial for mitochondrial uncoupling-induced metabolic effects but required to maintain skeletal muscle integrity.
      Authors: Ost M, Werner F, Dokas J, Klaus S, Voigt A
      PLoS ONE, 2014;9(4):e94689.
      Species: Mouse
      Sample Type: Plasma
    13. Long-term low carbohydrate diet leads to deleterious metabolic manifestations in diabetic mice.
      Authors: Handa K, Inukai K, Onuma H, Kudo A, Nakagawa F, Tsugawa K, Kitahara A, Moriya R, Takahashi K, Sumitani Y, Hosaka T, Kawakami H, Oyadomari S, Ishida H
      PLoS ONE, 2014;9(8):e104948.
      Species: Mouse
      Sample Type: Serum
    14. Skeletal muscle mitochondrial uncoupling drives endocrine cross-talk through the induction of FGF21 as a myokine.
      Authors: Keipert S, Ost M, Johann K, Imber F, Jastroch M, van Schothorst E, Keijer J, Klaus S
      Am J Physiol Endocrinol Metab, 2014;306(5):E469-82.
      Species: Mouse
      Sample Type: Plasma
    15. Somatic progenitor cell vulnerability to mitochondrial DNA mutagenesis underlies progeroid phenotypes in Polg mutator mice.
      Authors: Ahlqvist KJ, Hamalainen RH, Yatsuga S, Uutela M, Terzioglu M, Gotz A, Forsstrom S, Salven P, Angers-Loustau A, Kopra OH, Tyynismaa H, Larsson NG, Wartiovaara K, Prolla T, Trifunovic A, Suomalainen A
      Cell Metab., 2012;15(1):100-9.
      Species: Mouse
      Sample Type: Serum
    16. Activation of the farnesoid x receptor induces hepatic expression and secretion of fibroblast growth factor 21.
      Authors: Cyphert HA, Ge X, Kohan AB, Salati LM, Zhang Y, Hillgartner FB
      J. Biol. Chem., 2012;287(30):25123-38.
      Species: Rat
      Sample Type: Plasma
    17. Fasting-induced FGF21 is repressed by LXR activation via recruitment of an HDAC3 corepressor complex in mice.
      Authors: Archer A, Venteclef N, Mode A, Pedrelli M, Gabbi C, Clement K, Parini P, Gustafsson J, Korach-Andre M
      Mol Endocrinol, 2012;26(12):1980-90.
      Species: Mouse
      Sample Type: Serum
    18. Paradoxical regulation of human FGF21 by both fasting and feeding signals: is FGF21 a nutritional adaptation factor?
      Authors: Uebanso T, Taketani Y, Yamamoto H, Amo K, Ominami H, Arai H, Takei Y, Masuda M, Tanimura A, Harada N, Yamanaka-Okumura H, Takeda E
      PLoS ONE, 2011;6(8):e22976.
      Species: Human
      Sample Type: Cell Culture Supernates
    Expand to show all 18 Citations
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