- SynonymCD58,LFA3,Ag3
- SourceHuman CD58, His Tag (LF3-H5225) is expressed from human 293 cells (HEK293). It contains AA Phe 29-Arg 215 (Accession # AAH05930).Predicted N-terminus: Phe 29Request for sequence
- Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 22.3 kDa. The protein migrates as 30-55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
- EndotoxinLess than 1.0 EU per μg by the LAL method.
- Purity
>95% as determined by SDS-PAGE.
- Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
- 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.
- 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 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
Human CD58, His 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%.
Immobilized Human CD58, His Tag (Cat. No. LF3-H5225) at 10 μg/mL (100 μL/well) can bindHuman CD2, Fc Tag (Cat. No. CD2-H5258) with a linear range of 5-78 ng/mL (QC tested).
Loaded Human CD2, Fc Tag (Cat. No. CD2-H5258) on Protein A Biosensor, can bind Human CD58, His Tag (Cat. No. LF3-H5225) with an affinity constant of 2.3 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
- BackgroundCD antigen CD58 is also known as Lymphocyte function-associated antigen 3 (LFA-3). CD58 is a cell adhesion molecule expressed on Antigen Presenting Cells (APC), particularly macrophages. CD58 /LFA3 is ligand of the T-lymphocyte CD2 glycoprotein, which binds to CD2 (LFA-2) [3] on T cells and is important in strengthening the adhesion between the T cells and Professional Antigen Presenting Cells. In addition, the LFA-3/CD2 interaction may prime response by both the CD2+ and LFA-3+ cells. Polymorphisms in the CD58 gene are associated with increased risk for multiple sclerosis.
- References
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