1. Recombinant Proteins
  2. Cytokines and Growth Factors
  3. FGF Family
  4. Fibroblast Growth Factor
  5. FGF-19
  6. FGF-19 Protein, Human

FGF-19 Protein, Human

Cat. No.: HY-P7172
COA Handling Instructions

FGF-19 Protein, Human could activate a physiologically important, insulin-independent endocrine pathway that regulates hepatic protein and glycogen metabolism.

For research use only. We do not sell to patients.

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Description

FGF-19 Protein, Human could activate a physiologically important, insulin-independent endocrine pathway that regulates hepatic protein and glycogen metabolism.

Background

Fibroblast growth factor 19 (FGF19, also called FGF15 in rodents) is a member of a subfamily of fibroblast growth factors that govern nutrient metabolism. FGF19 binds to a receptor complex composed of the FGF receptor 4 (FGFR4) and a coreceptor called β-Klotho, which are both highly expressed in liver. FGF19 is an enterokine synthesized and released when bile acids are taken up into the ileum. FGF19 stimulates hepatic protein and glycogen synthesis but does not induce lipogenesis. FGF19 activates a physiologically important, insulin-independent endocrine pathway that regulates hepatic protein and glycogen metabolism[1].

Biological Activity

The ED50 is <288.5 ng/mL as measured by murine Balb/c 3T3 cells, corresponding to a specific activity of >3.46 × 103 units/mg.

Species

Human

Source

E. coli

Tag

Tag Free

Accession

O95750 (R23-K216)

Gene ID
Molecular Construction
N-term
FGF-19 (R23-K216)
Accession # O95750
C-term
Synonyms
rHuFGF-19; FGF19
AA Sequence

RPLAFSDAGPHVHYGWGDPIRLRHLYTSGPHGLSSCFLRIRADGVVDCARGQSAHSLLEIKAVALRTVAIKGVHSVRYLCMGADGKMQGLLQYSEEDCAFEEEIRPDGYNVYRSEKHRLPVSLSSAKQRQLYKNRGFLPLSHFLPMLPMVPEEPEDLRGHLESDMFSSPLETDSMDPFGLVTGLEAVRSPSFEK

Molecular Weight

21-26 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4 or 20 mM PB, 150 mM NaCl, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation
References

FGF-19 Protein, Human Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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FGF-19 Protein, Human
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