Rhesus macaque CD4, Fc Tag (CD4-C5256) is expressed from human 293 cells (HEK293). It contains AA Lys 26 - Trp 390 (Accession # G7N5T8).
Predicted N-terminus: Lys 26
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 67.0 kDa. The protein migrates as 67-85 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Less than 1.0 EU per μg by the LAL method.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.
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Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
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 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
Rhesus macaque CD4, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Rhesus macaque CD4, Fc Tag(Cat. No. CD4-C5256) was more than 90% and the molecular weight of this protein is around 145-155 kDa verified by SEC-MALS.
Immobilized Rhesus macaque CD4, Fc Tag (Cat. No. CD4-C5256) at 1 μg/mL (100 μL/well) can bind Ibalizumab with a linear range of 0.4-25 ng/mL (QC tested).
Immobilized HIV-1 [HIV-1/Clade C (16055)] GP120, His Tag (Cat. No. GP5-V15224) at 10 μg/mL (100 μL/well) can bind Rhesus macaque CD4, Fc Tag (Cat. No. CD4-C5256) with a linear range of 0.04-0.31 μg/mL (Routinely tested).
T-cell surface glycoprotein CD4 is also known as T-cell surface antigen T4/Leu-3. CD4 contains three Ig-like C2-type (immunoglobulin-like) domains and one Ig-like V-type (immunoglobulin-like) domain. CD4 is accessory protein for MHC class-II antigen/T-cell receptor interaction. CD4 induces the aggregation of lipid rafts. CD4 is a primary receptor used by HIV-1 to gain entry into host T cells. HIV infection leads to a progressive reduction of the number of T cells possessing CD4 receptors. Therefore, medical professionals refer to the CD4 count to decide when to begin treatment for HIV-infected patients.