Recombinant Human Fc gamma RIIIB/CD16b (NA1) Protein, Active

Name: Recombinant Human Fc gamma RIIIB/CD16b (NA1) Protein, Active
Brand: Beta LifeScience
SKU: BLK-01187P-100UG
Availability: InStock

Human Fc gamma RIIIB (NA1) on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

Collections: Fc receptors, Recombinant proteins

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Product Overview

Description	Recombinant Human Fc gamma RIIIB/CD16b (NA1) Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Gly17-Ser200(NA1).
Purity	> 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Accession	AAA35881.1
Target Symbol	Fc gamma RIIIB/CD16b (NA1)
Synonyms	CD16; CD16b antigen; CD16b（NA1); Fc fragment of IgG, low affinity IIIb, receptor (CD16b); Fc fragment of IgG, low affinity IIIb, receptor for (CD16); Fc gamma RIIIB; FCG3; Fc-gamma receptor IIIb (CD 16); Fc-gamma RIII; Fc-gamma RIIIb; Fc-gamma RIII-beta; FCGR3; FCGR3B; FcgRIIIB; FcR-10; fcRIII; FCRIIIB; IGFR3; IgG Fc receptor III-1; low affinity immunoglobulin gamma Fc region receptor III-B
Species	Human
Expression System	HEK293
Tag	C-His
Expression Range	Gly17-Ser200(NA1)
Mol. Weight	The protein has a predicted MW of 22.52 kDa. Due to glycosylation, the protein migrates to 40-50 kDa based on Tris-Bis PAGE result.
Form	Lyophilized
Formulation	Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Endotoxin	Less than 1EU per ug by the LAL method.
Activity	The affinity constant of 8.55 uM as determined in SPR assay (Biacore T200). Contact us for detailed testing images.
Storage	Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Shipping	Shipped at ambient temperature.
Gene Background	Human Fc gamma RIIIB/CD16b Protein is a receptor for the Fc region of immunoglobulins gamma. Low affinity receptor. Binds complexed or aggregated IgG and also monomeric IgG. Contrary to III-A, is not capable to mediate antibody-dependent cytotoxicity and phagocytosis. May serve as a trap for immune complexes in the peripheral circulation which does not activate neutrophils.

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.