Biotinylated Mouse OX40/TNFRSF4/CD134 Protein, Active

Name: Biotinylated Mouse OX40/TNFRSF4/CD134 Protein, Active
Brand: Beta LifeScience
SKU: BLK-00936P-100UG
Availability: InStock

Biotinylated Mouse OX40 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

Collections: High-quality recombinant proteins

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Product Overview

Description	Recombinant Biotinylated Mouse OX40/TNFRSF4/CD134 Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Val20-Pro211.
Purity	> 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Accession	P47741
Target Symbol	OX40/TNFRSF4/CD134
Synonyms	CD134 antigen; CD134;OX40; OX40L receptor; TNFRSF4;ACT-135; ACT35 antigen; ACT35ATC35 antigen; Ly-70; OX40 cell surface antigen; OX40 homologue;- OX40lymphoid activation antigene ACT35; TAX transcriptionally-activated glycoprotein 1 receptor; tax-transcriptionally activated glycoprotein 1 receptor; tumor necrosis factor receptor superfamily member 4; tumor necrosis factor receptor superfamily, member 4; Txgp1; TXGP1L; TXGP1LOX40 antigen
Species	Mouse
Expression System	HEK293
Tag	C-His-Avi
Expression Range	Val20-Pro211
Mol. Weight	The protein has a predicted MW of 24.2 kDa. Due to glycosylation, the protein migrates to 48-55 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	Immobilized Mouse OX40 Ligand, hFc Tag at 2ug/ml (100ul/Well) on the plate. Dose response curve for Biotinylated Mouse OX40, His Tag with the EC50 of 4.3ug/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	Tumor necrosis factor receptor superfamily, member 4 (TNFRSF4), also known as CD134 and OX40 receptor. OX40 is a secondary co-stimulatory immune checkpoint molecule, expressed after 24 to 72 hours following activation; its ligand, OX40L, is also not expressed on resting antigen presenting cells, but is following their activation.

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.