Name : Human PGF Protein
Product Source :
Recombinant Human PGF Protein is expressed from HEK293 with hFc tag at the C-Terminus. It contains Leu19-Arg221.[Accession | P49763-1]
Molecular Weight :
The protein has a predicted MW of 48.6 kDa. Due to glycosylation, the protein migrates to 60-70 kDa based on Tris-Bis PAGE result.
Endotoxin Level :
Less than 1EU per μg by the LAL method.
Purity :
> 95% as determined by Tris-Bis PAGE> 95% as determined by HPLC
Formulation :
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
Storage and Stability :
-20 to -80°C for 12 months as supplied from date of receipt.-80°C for 3-6 months after reconstitution.2-8°C for 2-7 days after reconstitution.Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Product Concentration :
Tris-Bis PAGE Human PGF on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. SEC-HPLC The purity of Human PGF is greater than 95% as determined by SEC-HPLC. ELISA Data Immobilized Human PGF, hFc Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Biotinylated Anti-PGF Antibody, hFc Tag with the EC50 of 34.1ng/ml determined by ELISA (QC Test). ELISA Data Immobilized Human PGF, hFc Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Human VEGF R1, His Tag with the EC50 of 12.8ng/ml determined by ELISA.
Background :
Placental growth factor (PGF) is another member of the VEGF family of cytokines with pro-angiogenic and pro-inflammatory effects. Retinal inhibition of PGF in combination with VEGF-A prevents vascular leakage and CNV possibly via modulating their own expression in mononuclear phagocytes. PGF-related, optimized strategies to target inflammation-mediated angiogenesis may help to increase efficacy and reduce non-responders in the treatment of wet AMD patients.
Synonyms :
PlGF; PGF; PGFL; SHGC-10760; D12S1900; PlGF-2
References & Citations :
(1) Balser C, Wolf A, Herb M, Langmann T. Co-inhibition of PGF and VEGF blocks their expression in mononuclear phagocytes and limits neovascularization and leakage in the murine retina. J Neuroinflammation. 2019 Feb 7;16(1):26. doi: 10.1186/s12974-019-1419-2. PMID: 30732627; PMCID: PMC6366121.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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