PROVETOP

Biotinylated Mouse Fc gamma RIII/CD16 Protein

Catalog No: CD16-MB001

Species
Mouse
Expression System
HEK293
Tag
His, Avi
Activity
Activity verified

Product overview

Recombinant Biotinylated Mouse Fc gamma RIII/CD16 Protein is expressed in HEK293 cells with a His tag and Avi tag at the C-terminus. It contains amino acid residues Leu32-Thr215 (UniProt accession: Q5D5I8).

Product Details

Molecular Aliases
IgG Fc receptor III; Fc-gamma RIII; FcRIII; FCGR3; CD16; CD16A; FCG3; FcgRIII; FCR-10; FCRIIIA; IGFR3; IMD20; FcγRIII; Fc γRIII; Fcγ RIII; Fc γ RIII
Protein Length
Leu32-Thr215
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 23.97 kDa. Due to glycosylation, the protein migrates to 40-50 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
CD16-MB001 Bis-Tris-PAGE-white result

Biotinylated Mouse Fc gamma RIII on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
CD16-MB001 SEC-HPLC result

The purity of Biotinylated Mouse Fc gamma RIII is greater than 95% as determined by SEC-HPLC.

SPR
CD16-MB001 SPR result

OKT3 captured on CM5 Chip via Protein A can bind Biotinylated Mouse Fc gamma RIII, His Tag with an affinity constant of 0.164 μM as determined in SPR assay (Biacore T200).

Background

Immunoglobulin G (IgG) Fc receptors play a critical role in linking IgG antibody-mediated immune responses with cellular effector functions. A high resolution map of the binding site on human IgG1 for human Fc gamma RI, Fc gamma RIIA, Fc gamma RIIB, Fc gamma RIIIA, and FcRn receptors has been determined.A common set of IgG1 residues is involved in binding to all Fc gamma R; Fc gamma RII and Fc gamma RIII also utilize residues outside this common set.

References

  1. Shields RL, Namenuk AK, Hong K, Meng YG, Rae J, Briggs J, Xie D, Lai J, Stadlen A, Li B, Fox JA, Presta LG. High resolution mapping of the binding site on human IgG1 for Fc gamma RI, Fc gamma RII, Fc gamma RIII, and FcRn and design of IgG1 variants with improved binding to the Fc gamma R. J Biol Chem. 2001 Mar 2;276(9):6591-604. doi: 10.1074/jbc.M009483200. Epub 2000 Nov
  2. PMID: 11096108.

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