Cynomolgus Recombinant CD8B protein, hFc Tag (V2LY-0526-LY1453)

Name: Cynomolgus Recombinant CD8B protein, hFc Tag
SKU: V2LY-0526-LY1453
Rating: 5 (1 reviews)

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Datasheet

SDS

Request for COA

Datasheet Target References Q & As Review & reward Protocols Associated Products

Basic Information

Expressed Host

HEK293 Cells

Protein Species

Cynomolgus

Tag

hFc Tag

Protein Construction

This product is Cynomolgus Recombinant CD8B protein, hFc Tag consist of Amino Acid: 1-170 and predicts a molecular mass of 43.88 kDa.

Molecule Mass

43.88 kDa

Sequence

Amino Acid: 1-170

Species

Cynomolgus

Formulations & Storage [For reference only, actual COA shall prevail!]

Purity

>90% as determined by SDS-PAGE.

Endotoxin

Please contact us for more information.

Format

Lyophilized

Reconstitution

Allow the vial and reconstitution buffer to equilibrate to room temperature. Briefly centrifuge or tap down the vial to ensure that all lyophilized powder is collected at the bottom of the vial. For the reconstitution of this product, we recommend adding PBS or sterile water to achieve a final antibody concentration of 1 mg/mL. Allow the vial to reconstitute for 10-15 minutes at room temperature with gentle agitation. Avoid vigorous shaking that can cause foaming and antibody denaturation. Aliquot into volumes based on your experiment and store liquid protein at -20°C or -80°C for long time.

Buffer

Lyophilized from sterile Tris, NaCl, Glutathione, EDTA, DTT, PMSF, Glycerol

Preservative

None

Storage

Samples are stable for up to twelve months from date of receipt at -20°C to -80°C. Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

More Infomation

Target

Full Name

CD8b Molecule

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. A palmitoylation site in the cytoplasmic tail of CD8B chain contributes to partitioning of CD8 into the plasma membrane lipid rafts where signaling proteins are enriched. Once LCK recruited, it initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of cytotoxic T-lymphocytes (CTLs). Additionally, plays a critical role in thymic selection of CD8+ T-cells.

Biological Process

Adaptive immune response Source: UniProtKB-KW
Immune response Source: UniProtKB
Regulation of defense response to virus by virus Source: Reactome
Regulation of immune response Source: Reactome
T cell activation Source: UniProtKB
Transmembrane receptor protein tyrosine kinase signaling pathway Source: UniProtKB

Cellular Location

Isoform 1&2&4&5: Cell membrane. Requires the partner CD8A for efficient cell surface expression (PubMed:3145196). The heterodimer CD8A/CD8B localizes to lipid rafts due to CD8B cytoplasmic tail palmitoylation.
Isoform 3&6&7&8: Secreted

Topology

Extracellular: 22-170
Helical: 171-191
Cytoplasmic: 192-210

PTM

Phosphorylated as a consequence of T-cell activation.
Palmitoylated at the cytoplasmic tail and thereby targets the heterodimer CD8A/CD8B to lipid rafts unlike CD8A homodimers.

Kayesh, M. E. H., Hashem, M. A., Maetani, F., Eiei, T., Mochizuki, K., Ochiai, S., ... & Tsukiyama-Kohara, K. (2020). CD4, CD8b, and cytokines expression profiles in peripheral blood mononuclear cells infected with different subtypes of KoRV from Koalas (Phascolarctos cinereus) in a Japanese Zoo. Viruses, 12(12), 1415.

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Please try the standard protocols which include: protocols, troubleshooting and guide.

Enzyme-linked Immunosorbent Assay (ELISA)
Flow Cytometry
Immunofluorescence (IF)
Immunohistochemistry (IHC)
Immunoprecipitation (IP)
Western Blot (WB)
Enzyme Linked Immunospot (ELISpot)
Proteogenomic
Other Protocols

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Isotype control

For research use only. Not intended for any clinical use.

Custom Antibody Labeling

We also offer labeled antibodies developed using our catalog antibody products and nonfluorescent conjugates (HRP, AP, Biotin, etc.) or fluorescent conjugates (Alexa Fluor, FITC, TRITC, Rhodamine, Texas Red, R-PE, APC, Qdot Probes, Pacific Dyes, etc.).

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