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Invitrogen
CD8 alpha Monoclonal Antibody (CT-8)
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Product Details
MA5-28729
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Avian,
Chicken
Host/Isotype
Mouse
/ IgG1, kappa
Class
Monoclonal
Type
Antibody
Clone
CT-8
Immunogen
Chicken thymocytes and Ig-negative blood leukocytes
Conjugate
Form
Liquid
Concentration
0.5 mg/mL
Amount
500 µg
Purification
purified
Storage buffer
BBS, pH 8.2
Contains
no preservative
Storage conditions
4°C
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
Target Information
CD8, also known as cluster of differentiation 8, is a type I transmembrane glycoprotein of the immunoglobulin family that plays a crucial role in T cell differentiation, activation, and signal transduction. It is expressed as either a heterodimer (CD8 alpha beta) or a homodimer (CD8 alpha alpha). The CD8 alpha beta form is predominantly found on the majority of thymocytes and a subpopulation of mature alpha beta TCR T cells, while the CD8 alpha alpha form is expressed on gamma delta TCR T cells, a subset of intestinal intraepithelial lymphocytes (IELs), and dendritic cells. CD8 functions as a co-receptor for major histocompatibility complex class I (MHC-I) molecules, working alongside the T cell receptor (TCR). The CD8 alpha chain is essential for binding to MHC-I. CD8 is also expressed on a subset of T cells, NK cells, monocytes, and dendritic cells as disulfide-linked homodimers of CD8 alpha. Upon ligation of MHC-I/peptide complexes presented by antigen-presenting cells (APCs), CD8 recruits lymphocyte-specific protein tyrosine kinase (Lck), leading to lymphokine production, increased motility, and activation of cytotoxic T lymphocytes (CTLs). Activated CTLs are vital for clearing pathogens and tumor cells. The differentiation of naive CD8+ T cells into CTLs is strongly enhanced by cytokines such as IL-2, IL-12, and TGF-beta1. Through its interactions with MHC-I and association with protein tyrosine kinase p56lck, CD8 plays a significant role in T cell development and the activation of mature T cells.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: CD8 alpha chain; CD8 antigen alpha polypeptide; CD8 antigen, alpha polypeptide (p32); CD8 antigen, beta polypeptide 1 (p37); CD8 beta chain; CD8A antigen alpha; CD8alpha; CD8beta; fCD8; Leu-2; leu-2a; membrane glycoprotein; membrane protein; T-cell surface molecule; type I transmembrane glycoprotein
Gene Aliases: CD8; CD8B; CD8B1; RHACD8-4
Entrez Gene ID: (Chicken) 428800, (Chicken) 403158, (Chicken) 396175
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Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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