FGF-18 Protein, Human

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FGF-18 Protein, Human is a heparin-binding polypeptide growth factor, involved in cartilage growth, maturation and the development of functional cartilage and bone tissue.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: E. coli
  • Storage:
    Stored at -20°C for 2 years from date of receipt. 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.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • References
  • Help & FAQs

Biological Activity

Description

FGF-18 Protein, Human is a heparin-binding polypeptide growth factor, involved in cartilage growth, maturation and the development of functional cartilage and bone tissue.

Background

Fibroblast growth factor 18 (FGF18), a secreted heparin-binding polypeptide growth factor, is related to FGF8 and 175 and has been shown to have a number of functions in different organs. FGF18 is involved in cartilage growth and maturation and is implicated in the development of functional cartilage and bone tissue. It is also involved in processes within mature cartilage10-13 as well as being shown to have a role in enhancing regeneration and repair[1]. Fibroblast growth factor 18 (FGF18) acts as an important role in skeletal growth and limb development, potentially through the modulation of osteoblasts, chondrocytes, and osteoclasts[2].

Verified Bioactivity

1.The ED50 is <10 ng/mL as measured by 3T3 cells, corresponding to a specific activity of > 1.0 × 105 units/mg.
2.Measured by its binding ability in a functional ELISA. Immobilized Human FGF18 at 10 μg/mL (100 μL/well) can bind Biotinylated Rat FGFR4 protein. The ED50 for this effect is 0.8084 μg/mL.
3.Measured by its binding ability in a functional ELISA. Immobilized Human FGF18 at 2 μg/mL (100 μL/well) can bind Biotinylated Rat FGFR4 protein. The ED50 for this effect is <0.6 μg/mL.

Technical Parameters

  • Species Human
  • Source E. coli
  • Tag Tag Free
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • FGF-18 (A27-R199)
      Accession # O76093
    • C-term
  • Protein Length

    Partial

  • Synonyms

    FGF18; ZFGF5; Fibroblast Growth Factor 18; Fibroblast Growth Factor; FGF-18; FGF

  • AA Sequence

    AEENVDFRIHVENQTRARDDVSRKQLRLYQLYSRTSGKHIQVLGRRISARGEDGDKYAQLLVETDTFGSQVRIKGKETEFYLCMNRKGKLVGKPDGTSKECVFIEKVLENNYTALMSAKYSGWYVGFTKKGRPRKGPKTRENQQDVHFMKRYPKGQPELQKPFKYTTVTKRSR

  • Predicted Molecular Mass

    20.3 kDa

  • Molecular Weight

    Approximately 20 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder

Formulation

1.Lyophilized from a 0.22 μm filtered solution of PBS.
2.Lyophilized from a 0.22 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.
3.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 8% trehalose.
Please refer to the lot-specific COA for specific buffer information.

Endotoxin Level

<0.2 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 from date of receipt. 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.

References

Calculators

Reconstitution Calculator

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

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

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

Concentration (start) Concentration (start)
×
Volume (start) Volume (start)
=
Concentration (final) Concentration (final)
×
Volume (final) Volume (final)
The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

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

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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