FGF2 Human, Thermostable

FGF2 Human, Thermostable

Fibroblast Growth Factor

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  • Name :

    FGF2 Human, Thermostable

    Description:

    Fibroblast Growth Factor-basic Human Recombinant, Thermostable

    HBGH-2, HBGF-2, FGF-2, FGF-b, HBGH2, HBGF2, FGF2, FGFb, FGF2 Thermostable, FGF-2 Thermostable.

    Product # :

    CYT-943

    Price :

    Quantity :

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    Room Temp Icon

    Shipped at Room temp

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  • description
  • source
  • formulation
  • purity
  • biological activity
  • More Info

Description

FGF2 Thermostable is a stabilized form of FGF2 growth factor which enables a novel method to produce FGF2-dependent cell cultures more efficiently, having less media changes. FGF2 Thermostable can maintain its biological activity even after five days at 37°C. The increase in the stability of FGF2 in cell-culture enables a more homogenous, undifferentiated stem cell culture, while saving scientists crucial time and money, as frequent supplementation of FGF-basic and the everyday medium change is not necessary. Thermostable FGF-2 is a hyperstable protein. The Thermal stability of the protein is increased by 15°C compared to the wild-type FGF-2. Thermostable FGF-2 is more than 5-times prolonged half-life in human cell culture incubated at 37°C. The FGF-2 Thermostable protein is engineered with fully retained biological function and has no harmful stabilizing additives.Thermostable FGF2 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 154 amino acids and having a total calculated molecular mass is 17.2kDa.

Source

Escherichia Coli.

Formulation

FGF Basic Thermostable was lyophilized from 20mM Tris-HCl, 150mM NaCl & 5% Trehalose, pH-7.6.

Purity

Purity is greater than 95% as determined by SDS-PAGE.

Biological Activity

The ED50 as calculated by the dose-dependent proliferation of murine balb/c 3T3 cells is less than 0.05ng/ml, corresponding to a specific activity of >20,000,000 units/mg

More Info

  • Synonyms

    FGF2 Thermostable, FGF-basic Thermostable.

  • Physical Appearance

    Filtered White lyophilized (freeze-dried) powder.

  • Stability

    Lyophilized Thermostable FGF2 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution FGF2 Thermostable should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.

  • Solubility

    It is recommended to reconstitute the lyophilized FGF2 thermostable protein in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

  • Amino Acid Sequence

    AAGSITTLPA LPEDGGSGAF PPGHFKDPKL LYCKNGGFFL RIHPDGRVDG TRDKSDPFIK LQLQAEERGV VSIKGVCANR YLAMKEDGRL YAIKNVTDEC FFFERLEENN YNTYRSRKYP SWYVALKRTG QYKLGSKTGP GQKAILFLPM SAKS

  • Background

    Why Choose FGF2 Thermostable?
    FGF2 can lose much of its activity after 1-2 days at 37°C due to unfolding and degradation. Thermostable FGF2 is engineered with amino acid substitutions that increase structural stability without significantly altering receptor binding or biological function.

    What are the advantages of FGF2 Protein?
    *Better maintenance of pluripotency markers
    *Higher colony quality
    *Faster expansion rates
    *Reduced spontaneous differentiation
    *Greater viability after passaging

    What is the source or expression system of FGF2 Protein?
    Escherichia Coli.

    What is the Purity of FGF2 Protein?
    FGF2 Protein is >95% pure as determined by SDS-PAGE.

    What is the molecular weight / Mw of FGF2 Protein?
    FGF2 Protein having a total Mw of 17.2kDa.

    What is the Biological Activity of FGF2 Protein?
    The ED50 as calculated by the dose-dependent proliferation of murine balb/c 3T3 cells is less than 0.05ng/ml, corresponding to a specific activity of >20,000,000 units/mg.

    What is the endotoxin level for FGF2 Protein?
    The endotoxin level is minimal, FGF2 Protein was purified using conventional chromatography techniques.

    What is the amino acid sequence of FGF2 Protein?
    AAGSITTLPA LPEDGGSGAF PPGHFKDPKL LYCKNGGFFL RIHPDGRVDG TRDKSDPFIK LQLQAEERGV VSIKGVCANR YLAMKEDGRL YAIKNVTDEC FFFERLEENN YNTYRSRKYP SWYVALKRTG QYKLGSKTGP GQKAILFLPM SAKS

    Is FGF2 Protein conjugated to a Tag?
    FGF2 Protein is not conjugated to a tag.

    What applications can FGF2 Protein be used in?
    FGF2 Protein can probably be used in western blot, ELISA and Lateral Flow.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Fgf2 Human Thermostable

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Frequently asked questions

1. Which company offers Recombinant Growth Factors at competitive prices?

ProSpec offers vast array of Growth Factors such as EGF| IGF1 | Leptin| VEGF and much more at affordable descent prices to meet academic budgets
ProSpec provides High Purity Growth Factors for 30 years, purity exhibits 95% and more as visualized by SDS-PAGE gel.
Growth Factors are in stock for immediate delivery via FedEx which enables scientists and researchers to perform immediate experiments.
Growth Factors are shipped globally using ProSpec’s custom tailored Styrofoam insulated box and premium ice packs that ensure maximum protein stability during transit to your laboratory.

2. Where can i find biologically active Growth Factors?

ProSpec offers biologically functional Growth Factors such as Prolactin | Erythropoietin | PDGF-BB which are rigorously tested in-vitro to provide researchers world wide BioActive Growth Factors.

3. What is the activity validation method for Growth Factors?

ProSpec uses cell-based bioassays that measures the biological activity, for example:
Activin-A is validated by Activin-responsive luciferase assay, SMAD2/3 phosphorylation.
CSF, G-CSF, GM-CSF, M-CSF are validated by Cytokine-dependent cell proliferation assay.
CTGF is validated by Fibroblast proliferation or migration assay.
EGF is validated by NIH3T3 or Balb/3T3 proliferation assay.
Epigen (EPGN) is validated by EGFR activation assay, cell proliferation.
Erythropoietin (EPO) is validated by TF-1 or UT-7 erythroid cell proliferation assay.
Fibroblast Growth Factors is validated by NIH3T3 proliferation assay.
IGF-1 and IGF-2 are validated by Cell proliferation assay (MCF-7, Saos-2, BALB/3T3).

4. Is the Growth Factor full length or partial?

The Growth Factor proteins are both full length and partial while majority of them are active mature proteins rather than a full-length precursor. ProSpec active mature proteins exhibits higher expression yields, better stability, Easier purification and equivalent biological activity as full length precursor.

5. Is the Growth Factor monomeric or dimeric form?

This depends on the Growth Factor. ProSpec Growth Factors are supplied in the native biologically active oligomeric state, which can be monomeric, dimeric, trimeric, or even multimeric since because receptor binding and biological activity often depend on correct oligomerization.
The EGF, Epigen, Fibroblast Growth Factors (FGF1, FGF2, FGF7/KGF)
HDGF, IGFBPs (IGFBP-1 to IGFBP-7), IGF2 are usually provided as monomer proteins though Activin-A and myostatin are supplied as homodimers.

6. What is the Growth Factor purity and how was it determined?

The Growth Factors purity ranges from high purity of ≥95% to premium grade ≥97%.
ProSpec uses SDS-PAGE Coomassie Blue Staining as the primary purity method which Visualizes protein bands. Some SDS-PAGE gels are stained with Silver Stain. Other analytical methods include RP-HPLC [ High-resolution purity determination ] , SEC-HPLC for the detections of aggregates and fragments and Western Blot to confirm Growth Factors identity.

7. Is the Growth Factor sequence verified?

The amino acid sequence verification is performed at DNA & protein level.
Sanger DNA Sequencing verifies the expression plasmid having correct coding.
LC-MS is used to verify the molecular weight of the final purified Growth Factor
Prospec also uses Edman N-terminal Sequencing to determine the amino-terminal sequence.

8. What is the endotoxin level in Growth Factors and how do you test LPS ?

ProSpec Growth Factors are tested for endotoxin also named LPS [ lipopolysaccharide ] which is found in the outer membrane of Gram-negative bacteria which can affect cytokine secretion, cell proliferation and stem cell.
ProSpec measures endotoxin using the Limulus Amebocyte Lysate [ LAL ] assay such as Gel-Clot.
ProSpec standard Endotoxin level for cytokines is usually <1 EU/ug.
What Does "EU" Mean? EU = Endotoxin Units

9. Is there host cell protein contamination?

There might be a minor existence of host-cell proteins post chromatography purification and quality-control procedures that greatly minimize these impurities. ProSpec tests host-cell protein levels by SDS-PAGE silver staining, or mass spectrometry.

10. Is the protein tested in vitro, in-vivo cell culture, stem cells, T cells, ELISA, western blot?

PoSpec Growth Factors proteins are usually tested for biological activity and identity, while some proteins are not though supported by literature and customer experience. Interleukins are tested in T-cell, NK-cell, PBMC, stem cell culture. Interferons are tested in Antiviral assays, immune-cell activation, TNFA proteins are tested in Apoptosis, inflammation and immune studies. ProSpec does not conduct in-vivo or animal injections experiments in house or our source.