PROVETOP

Biotinylated Canine CD20/MS4A1 Nanodisc

Catalog No: CD20-DB001

Species
Canine
Expression System
HEK293
Tag
His
Activity
Activity verified

Product overview

Recombinant Biotinylated Canine CD20/MS4A1 Nanodisc is expressed in HEK293 cells with a His tag at the C-terminus. It contains amino acid residues Met1-Pro297 (UniProt accession: Q3C2E2).

Product Details

Molecular Aliases
MS4A1; CD20; MS4A-1; B1; Bp35; CD20 receptor; CD20S7; CVID5; LEU-16; Ly-44; MS4A2; S7; LEU16; Ly44
Protein Length
Met1-Pro297
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 46.01 kDa.
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Supplied as 0.22 μm filtered solution in PBS, 200mM L-arginine (pH 7.4). Notice: Not recommended for flow cytometry in mammalian cells.
State
Liquid
Storage Conditions
Valid for 6 months from date of receipt when stored at -80°C. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

Data Display

ELISA
CD20-DB001 ELISA result

Immobilized Biotinylated Canine CD20 Nanodisc, His Tag at 2μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Anti-CD20 Antibody, hFc Tag with the EC50 of 3.7ng/ml determined by ELISA. (QC Test)

SPR
CD20-DB001 SPR result

Biotinylated Canine CD20 Nanodisc, His Tag captured on CM5 Chip via Streptavidin can bind Anti-CD20 Antibody, hFc Tag with an affinity constant of 1.01 nM as determined in SPR assay (Biacore S200).

Background

B-lymphocyte antigen CD20 or CD20 is an activated-glycosylated phosphoprotein expressed on the surface of all B-cells beginning at the pro-B phase (CD45R, CD117) and progressively increasing in concentration until maturity. CD20 is the target of the monoclonal antibodies rituximab, ocrelizumab, obinutuzumab, ofatumumab, ibritumomab tiuxetan, tositumomab, and ublituximab, which are all active agents in the treatment of all B cell lymphomas, leukemias, and B cell-mediated autoimmune diseases.

References

  1. Ma D, Mcdevitt M R, Barendswaard E, et al. Radioimmunotherapy for model B cell malignancies using 90Y-labeled anti-CD19 and anti-CD20 monoclonal antibodies[J]. Leukemia, 2002, 16(1):60-66.
  2. Jager U, Fridrik M, Zeitlinger M, et al. Rituximab serum concentrations during immuno-chemotherapy of follicular lymphoma correlate with patient gender, bone marrow infiltration and clinical response[J]. Haematologica, 2012, 97(9):1431-1438.

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