Name : Cynomolgus/Rhesus macaque FcRn Protein
Product Source :
Recombinant Cynomolgus/Rhesus macaque FcRn Protein is expressed from HEK293 with His tag at the C-Terminus. It contains Ala24-Ser297 (FCGRT)&Ile21-Met119 (B2M).[Accession | Q8SPV9(FCGRT)&Q8SPW0(B2M)]
Molecular Weight :
The protein has a predicted MW of 31.5 kDa (FCGRT)&11.6 kDa (B2M). Due to glycosylation, the protein migrates to 35-38 kDa (FCGRT)&13-15 kDa (B2M) 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 Cynomolgus/Rhesus macaque FcRn on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. SEC-HPLC The purity of Cynomolgus/Rhesus macaque FcRn is greater than 95% as determined by SEC-HPLC. ELISA Data Immobilized Cynomolgus/Rhesus macaque FcRn, His Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Anti-FcRn Antibody, hFc Tag with the EC50 of 6.4ng/ml determined by ELISA (QC Test). SPR Data Cynomolgus/Rhesus macaque FcRn, His Tag captured on CM5 Chip via Anti-His Antibody can bind Trastuzumab with an affinity constant of 0.18 μM as determined in SPR assay (Biacore T200). SPR Data Cynomolgus Serum Albumin, His Tag immobilized on CM5 Chip can bind Cynomolgus/Rhesus macaque FcRn, His Tag with an affinity constant of 0.108 μM as determined in SPR assay (Biacore T200).
Background :
The neonatal Fc receptor (FcRn) is an approximately 45 kDa transmembrane glycoprotein with structural homology to MHC class I proteins. It is widely expressed in endothelial and epithelial cells and plays an important role in IgG homeostasis and antigen presentation by dendritic cells.FCGRT & B2M heterodimer protein (FcRn complex) consist of two subunits: p51, and p14 , and forms an MHC class I-like heterodimer.
References & Citations :
(1) Kiessling P , Lledo-Garcia R , Watanabe S , et al. The FcRn inhibitor rozanolixizumab reduces human serum IgG concentration: A randomized phase 1 study[J]. Science translational medicine, 2017, 9(414):eaan1208.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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