Recombinant Human Siglec-10 (R119A) Protein, Active

Name: Recombinant Human Siglec-10 (R119A) Protein, Active
Brand: Beta LifeScience
SKU: BLK-01384P-100UG
Availability: InStock

Human Siglec-10 (R119A) on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

Collections: All products, High-quality recombinant proteins

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Product Overview

Description	Recombinant Human Siglec-10(R119A) Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Met17-Thr546.
Purity	> 95% as determined by Tris-Bis PAGE;
Accession	Q96LC7
Target Symbol	Siglec-10 (R119A)
Synonyms	SLG2; SIGLEC10; MGC126774; PRO940
Species	Human
Expression System	HEK293
Tag	C-His-Avi
Expression Range	Met17-Thr546
Mol. Weight	The protein has a predicted MW of 62.64 kDa. Due to glycosylation, the protein migrates to 65-80 kDa based on Tris-Bis PAGE result.
Form	Lyophilized
Formulation	Lyophilized from 0.22um filtered solution in 20mM Tris,150mM NaCl, 200mM Arginine (pH 8.0). Normally 8% trehalose is added as protectant before lyophilization.
Endotoxin	Less than 1EU per ug by the LAL method.
Activity	Immobilized Human Siglec-10 (R119A) , His Tag at 0.5ug/ml (100ul/well) on the plate. Dose response curve for Anti-Siglec-10 (R119A) Antibody, hFc Tag with the EC50 of 19.8ng/ml determined by ELISA. 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	Siglec-10 is a ligand for CD52, the target of the therapeutic monoclonal antibody Alemtuzumab. It is also reported to bind to Vascular adhesion protein 1 (VAP-1) and to the co-stimulatory molecule CD24 also known as HSA (Heat-stable antigen).Siglecs (sialic acid binding Ig-like lectins) are I-type lectins that belong to the immunoglobulin superfamily. They are characterized by an N-terminal Ig-like V-type domain which mediates sialic acid binding, followed by a varying number of Ig-like C2-type domains. Siglecs 5-11 constitute the CD33/Siglec-3 related group, and are differentially expressed in the hematopoietic system.

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.