Human CD8A (T-Cell Surface Glycoprotein Cd8 Alpha Chain) - Recombinant Protein

Beta LifeScience SKU/CAT #: BLT-07460P
SDS-PAGE analysis of Human CD8A (T-Cell Surface Glycoprotein Cd8 Alpha Chain) - Recombinant Protein, CAT
SDS-PAGE analysis of Human CD8A (T-Cell Surface Glycoprotein Cd8 Alpha Chain) - Recombinant Protein, CAT# BLT-07460P, showing >90% purity under 15% SDS-PAGE (Reduced)

Human CD8A (T-Cell Surface Glycoprotein Cd8 Alpha Chain) - Recombinant Protein

Beta LifeScience SKU/CAT #: BLT-07460P
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Size

Quantity Pricing

Pack Size Price (USD)
500 µg $1,206.00 Original price: $1,575.00
1 mg $2,284.00 Original price: $2,855.00

For direct online orders, quantity pricing will be displayed in cart when you add 5x100ug or 10x100ug


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Product Overview

Product Name Recombinant Human Cluster Of Differentiation 8a (CD8a) Protein
Product Overview This recombinant human Cluster Of Differentiation 8a (CD8a) protein includes amino acids 22-235aa of the target gene is expressed in E.coli.The protein is supplied in lyophilized form and formulated in PBSprior to lyophilization.
Target Uniprot Id P01732
Recommended Name T-cell surface glycoprotein CD8 alpha chain
Gene Name CD8A
Synonyms p32; CD8-A; Leu2; MAL; T-cell surface glycoprotein CD8 alpha chain; T-lymphocyte differentiation ant
Species Human
Predicted Molecular Mass 24/28 kDa
Expression System E.coli
Expression Range 22-235aa
Tag N-6His
Purity >90%
Formulation Lyophilized
Buffer PBS
Storage Condition 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Reconstitution Instruction Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Applications Positive Control; Immunogen; SDS-PAGE; WB
Research Area Immunology
Target Function Integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. In T-cells, functions primarily as a coreceptor for MHC class I molecule:peptide complex. The antigens presented by class I peptides are derived from cytosolic proteins while class II derived from extracellular proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class I proteins presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. LCK then initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of cytotoxic T-lymphocytes (CTLs). This mechanism enables CTLs to recognize and eliminate infected cells and tumor cells. In NK-cells, the presence of CD8A homodimers at the cell surface provides a survival mechanism allowing conjugation and lysis of multiple target cells. CD8A homodimer molecules also promote the survival and differentiation of activated lymphocytes into memory CD8 T-cells.
Subcellular Location [Isoform 1]: Cell membrane; Single-pass type I membrane protein.; [Isoform 2]: Secreted.
Associated Diseases CD8 deficiency, familial (CD8 deficiency)
Tissue Specificity CD8 on thymus-derived T-cells usually consists of a disulfide-linked alpha/CD8A and a beta/CD8B chain. Less frequently, CD8 can be expressed as a CD8A homodimer. A subset of natural killer cells, memory T-cells, intraepithelial lymphocytes, monocytes and

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.

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