Recombinant Cynomolgus Fc gamma RI / CD64 Protein, His Tag (MALS & SPR verified), 50 µg

Background
Receptors that recognize the Fc portion of IgG are divided into three groups designated Fc gamma RI, RII, and RIII, also known respectively as CD64, CD32, and CD16. Fc gamma RI binds IgG with high affinity and functions during early immune responses. Fc gamma RII and RIII are low affinity receptors that recognize IgG as aggregates surrounding multivalent antigens during late immune responses. High affinity immunoglobulin gamma Fc receptor I is also known as FCGR1A, FCG1, FCGR1, CD64 and IGFR1, is a type of integral membrane glycoprotein that binds monomeric IgG-type antibodies with high affinity, which belongs to the immunoglobulin superfamily or FCGR1 family. FCGR1A / CD64 contains 3 Ig-like C2-type (immunoglobulin-like) domains. CD64 is constitutively found on only macrophages and monocytes, but treatment of polymorphonuclear leukocytes with cytokines like IFNγ and G-CSF can induce CD64 expression on these cells.

Source
Recombinant Cynomolgus CD64, His Tag (FCA-C52H6) is expressed from human 293 cells (HEK293). It contains AA Val 11 - Pro 288 (Accession # NP_001270969.1).

Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 33.2 kDa. The protein migrates as 40-50 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation

Endotoxin
Less than 1.0 EU per μg by the LAL method.

Purity
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.

Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

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.

Bioactivity
Please refer to product data sheet.

Clinical and Translational Updates

(1) "Innate cell response in severe SARS-CoV-2 infection in children: Expression analysis of CD64, CD18 and CD11a"
García-Salido, García-Teresa, Leoz-Gordillo et al
Med Intensiva (Engl Ed) (2022) 46 (1), 50-53
(2) "Two New Neutrophil Subsets Define a Discriminating Sepsis Signature"
Meghraoui-Kheddar, Chousterman, Guillou et al
Am J Respir Crit Care Med (2022) 205 (1), 46-59
(3) "Machine learning identification of specific changes in myeloid cell phenotype during bloodstream infections"
Gosset, Foguenne, Simul et al
Sci Rep (2021) 11 (1), 20288
Showing 1-3 of 789 papers.