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分子别名（Synonym）
FGF8,Fibroblast growth factor 8,FGF-8，Androgen-induced growth factor，Heparin-binding growth factor 8 ,AIGF
表达区间及表达系统（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 stag to later clinical phases.Request for sequence蛋白结构（Molecular Characterization）
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).
偶联（Conjugate）
Unconjugated
内毒素（Endotoxin）
Less than 0.01 EU per μg by the LAL method.
宿主蛋白残留（Host Cell Protein）
0.5 ng/µg of protein tested by ELISA.
宿主核酸残留（Host Cell DNA）
0.02 ng/μg of protein tested by qPCR.
无菌（Sterility）
Negative
支原体（Mycoplasma）
Negative.
纯度（Purity）
95% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（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.
存储（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.
质量管理控制体系（QMS）
产品展示
电泳（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).
活性（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
活性（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
应用数据（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).
稳定性（Stability）
The Cell based assay shows batch-to-batch consistency between Acro's GMP and PG FGF-8b.
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