Product Details
Features and Advantages
- Seamless Transition from Preclinical to Clinical: Same cell clone, process, and QC as GMP products.
- Enhanced Production Standards: AOF raw materials, pharma-grade excipients, Grade B+A (ISO 5) environment.
- Comprehensive Quality Control: Additional strict testing for process impurities, sterility, and mycoplasma.
- Cost-Effective Solution: GMP-comparable quality at an economical price for early development.
- Risk Mitigation: Enhanced safety through rigorous impurity control and comprehensive testing.
Synonyms
FGF8, Fibroblast growth factor 8, FGF-8,Androgen-induced growth factor,Heparin-binding growth factor 8 , AIGF
Source
Human FGF-8b Protein, premium grade (FGB-H5115) is expressed from E. coli cells. It contains AA Gln 23 - Arg 215 (Accession # P55075-3).
Predicted N-terminus: Met
It is produced under our rigorous quality control system that incorporates a comprehensive set of tests including sterility and endotoxin tests. Product performance is carefully validated and tested for compatibility for cell culture use or any other applications in the early preclinical stage.
GMP-FGBH16 is the GMP version of this FGB-H5115. These two proteins display indistinguishable performance profiles, thereby ensuring a seamless transition for end users from early preclinical stage to later clinical phases.Request for sequenceMolecular Characterization

Other Tags and Version Biotin & Other Labeled Version
This protein carries no "tag".
The protein has a calculated MW of 22.5 kDa. The protein migrates as 25 kDa±3 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).
Endotoxin
Less than 0.01 EU per μg by the LAL method / rFC method.
Host Cell Protein
<0.5 ng/µg of protein tested by ELISA.
Host Cell DNA
<0.02 ng/μg of protein tested by qPCR.
Sterility
Negative
Mycoplasma
Negative
Purity
>95% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 24 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
Quality Description
ACRO's Research-grade products are suitable for a wide range of cell culture applications, particularly for research use in academic institutions. These products are sterilized by filtration, followed by lyophilization where applicable. Typical specifications include endotoxin levels of <0.01 EU/μg and purities >95%. Biological activity is calibrated against WHO/NIBSC standards when available.
ACRO's Premium-grade (Pre-GMP) products are characterized by their high quality and enhanced safety profiles, making them ideal for early-stage discovery and manufacturing processes in cell therapy companies. A key advantage is their seamless transition to corresponding GMP-grade versions. Biological activity is calibrated against WHO/NIBSC standards when available. Typical specifications include endotoxin levels of <0.01 EU/μg and purities >95%. In addition, rigorous testing is conducted to ensure the absence of mycoplasma, HCD, and HCP, thereby guaranteeing product safety.
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Performance Data
SDS-PAGE

Human FGF-8b Protein, premium grade on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
Bioactivity-CELL BASE

Human FGF-8b Protein, premium grade (Cat. No. FGB-H5115) stimulates proliferation of NIH-3T3 cells. The specific activity of Human FGF-8b Protein, premium grade is>2.00 x 10^3 U/mg (QC tested).
Protocol
Bioactivity-ELISA

Immobilized Human FGF-8b Protein, premium grade (Cat. No. FGB-H5115) at 5 μg/mL (100 μL/well) can bind Human FGF R3 (IIIb), Fc Tag (Cat. No. FGB-H5259) with a linear range of 10-156 ng/mL (QC tested).
Protocol
Application Data

GMP Human FGF-8b Protein (Cat. No. GMP-FGBH16) and Human FGF-8b Protein, premium grade (Cat. No. FGB-H5115) have similar bioactivity to efficiently induce the neuron progenitor cell into dopaminergic neurons differentiation, highly expressed TH1 and MAP2 in immunofluorescence staining and FACS (Routinely tested).
Bioactivity-Stability

Cell-based assay demonstrates batch-to-batch consistency between Acro's GMP and PG FGF-8b.
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