产品信息
优势特色(Features)
- Designed under ISO 9001:2015 and ISO 13485:2016
- Manufactured and QC tested under a GMP compliance factory
- Animal-Free materials
- Beta-lactam materials free
- Batch-to-batch consistency
- Stringent quality control tests
表达区间及表达系统(Source)
GMP Human VEGF165 Protein (GMP-VE5H23) is expressed from human 293 cells (HEK293). It contains AA Ala 27 - Arg 191 (Accession # P15692-4).
Predicted N-terminus: Ala 27
Request for sequence
蛋白结构(Molecular Characterization)

This protein carries no "tag".
The protein has a calculated MW of 19.2 kDa. The protein migrates as 24 kDa±3 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素(Endotoxin)
Less than 10 EU/mg 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)
The sterility testing was performed by membrane filtration method described in CP<1101>, USP<71> and Eur. Ph. 2.6.1.
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 protectants.
Contact us for customized product form or formulation.
运输(Shipping)
This product is supplied and shipped with blue ice, please inquire the shipping cost.
存储(Storage)
Upon receipt, store it immediately at -20°C or lower for long term storage.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 5 years in lyophilized state;
- -70°C for 12 months under sterile conditions after reconstitution.
产品数据图
电泳(SDS-PAGE)

GMP Human VEGF165 Protein on SDS-PAGE under reducing (R) condition. 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)-Bioactivity CELL BASE

GMP Human VEGF165 Protein (Cat. No. GMP-VE5H23) stimulates proliferation of 293F-NFAT/Luc-VEGFR2-3-7 cells. The specific activity of GMP Human VEGF165 Protein is>8.00 X 10^5 IU/mg, which is calibrated against human vascular endothelial growth factor 165 WHO International Standard (NIBSC code: 02/286) (QC tested).
Protocol

The activity of GMP Human VEGF165 Protein (Cat. No. GMP-VE5H23) was higher than other competing products.
应用数据(Application Data)
GMP Human SCF Protein (Cat. No. GMP-SCFH25), GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25), GMP Human Flt-3 Ligand Protein (Cat. No. GMP-FLLH28), GMP Human FGF basic Protein (Cat. No. GMP-FGCH17) and GMP Human VEGF165 Protein (Cat. No. GMP-VE5H23) could significantly promote the iPSC differentiation to HSPCSs after 14 days, highly expressed hematopoietic stem cell markers CD34 and CD45.
稳定性(Stability)

The Cell based assay shows that GMP Human VEGF165 Protein (Cat. No. GMP-VE5H23) is stable at 37°C for 24 hours.

The Cell based assay shows that GMP Human VEGF165 Protein (Cat. No. GMP-VE5H23) is stable after freezing and thawing 3 times.

The Cell based assay shows that GMP Human VEGF165 Protein (Cat. No. GMP-VE5H23) is stable at 4℃ for 180 days.

The Cell based assay shows batch-to-batch consistency between Acro's GMP and PG VEGF165.
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背景
VEGF165 is the most abundant splice variant of VEGF-A. VEGF165 is produced by a number of cells including endothelial cells, macrophages and T cells. VEGF165 is involved in angiogenesis, vascular endothelial cell survival, growth, migration and vascular permeability. VEGF gene expression is induced by hypoxia, inflammatory cytokines and oncogenes. VEGF165 binds to heparan sulfate and is retained on the cell surface and in the extracellular matrix. VEGF165 binds to the receptor tyrosine kinases, VEGFR1 and VEGFR2. VEGF165 is the only splice variant that binds to co-receptors NRP-1 and NRP-2 that function to enhance VEGFR2 signaling. Binding of VEGF165 to VEGFR1 and VEGFR2 leads to activation of the PI3K/AKT, p38 MAPK, FAK and paxillin. VEGF plays a key role in tumor angiogenesis in many cancers.