Anti-CD8 alpha/Cd8a Antibody Picoband®

About this product

Boster Bio Anti-CD8 alpha/Cd8a Antibody Picoband® catalog # A02236-2. Tested in ELISA, IHC, WB applications. This antibody reacts with Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Specifications

Catalog number

A02236-2

Size / count

100 µg/Vial

Dry ice

No

Hazardous

No

Discontinued

No

Background

The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. It is mapped to 2p11.2. The CD8 antigen, acting as a coreceptor, and the T-cell receptor on the T lymphocyte recognize antigen displayed by an antigen presenting cell (APC) in the context of class I MHC molecules. The functional coreceptor is either a homodimer composed of two alpha chains, or a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains. This gene also encodes the CD8 alpha chain isoforms.

Synonyms

T-cell surface glycoprotein CD8 alpha chain; CD8 antigen 32 kDa chain; OX-8 membrane antigen; CD8a

Gene Name

Cd8a

Gene ID

24930

UniProt

P07725

Host

Rabbit

Reactivity

Rat

Cross Reactivity

No cross-reactivity with other proteins.

Immunogen

E.coli-derived rat CD8 alpha/Cd8a recombinant protein (Position: Q27-Q114) .

Clonality

Polyclonal

Applications

ELISA, IHC, WB

Field of Research

Immunology, T Cells

Purification

Immunogen affinity purified.

Concentration

Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Form

Lyophilized

Reconstitution

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

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.

References & Citations

1. Bowcock, A. M., Kavathas, P., Margolskee, R. F., Herzenberg, L., Cavalli-Sforza, L. L. An RFLP associated with pcDLeu2-14, a human T-cell differentiation antigen CD8 (Leu2) cDNA mapped to 2p12. Nucleic Acids Res. 14: 7817 only, 1986. 2. Entrez Gene: CD8A CD8a molecule.

Storage Conditions

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Observed Molecular Weight

26-35 kDa

Specificity

No cross reactivity with other proteins.

Gene Name Synonym

CD8a molecule

Subcellular Location

Cell membrane. Single-pass type I membrane protein.

Isotype

Rabbit IgG

Contents

Each vial contains 4mg Trehalose, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3.