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Invitrogen
CD8 Monoclonal Antibody (3B5), PE-Cyanine5.5
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Product Details
MHCD0818
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human
Published species
C. elegans,
Human,
Rhesus monkey
Host/Isotype
Mouse
/ IgG2a
Class
Monoclonal
Type
Antibody
Clone
3B5
Immunogen
Human CD8
Conjugate
Excitation/Emission Max
564/692 nm
View spectra
Form
Liquid
Purification
purified
Storage buffer
PBS with 10% sucrose, BSA
Contains
0.1% sodium azide
Storage conditions
4°C, store in dark
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
Product Specific Information
The R-phycoerythrin (PE)-Cy5.5 tandem conjugate permits simultaneous multicolor labeling and detection of multiple targets with excitation by a single excitation source-the 488 nm line of the argon-ion laser.
This antibody recognizes the alpha chain alone as well as the alpha/beta heterodimer.
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.
Analyte Specific Reagent
How to use the Panel Builder
Watch the video to learn how to use the Invitrogen Flow Cytometry Panel Builder to build your next flow cytometry panel in 5 easy steps.
Bioinformatics
Protein Aliases: CD8 antigen, alpha polypeptide (p32); CD8 antigen, beta polypeptide 1 (p37); CD8a; CD8alpha; CD8b; CD8beta; fCD8; Leu-2; leu-2a; Leu2 T-lymphocyte antigen; OKT8 T-cell antigen; T cell co-receptor; T lymphocyte surface glycoprotein beta chain; T-cell antigen Leu2; T-cell surface glycoprotein CD8 alpha chain; T-cell surface glycoprotein CD8 beta chain; T-lymphocyte differentiation antigen T8/Leu-2; T8 T-cell antigen
Gene Aliases: CD8; CD8A; CD8B; CD8B1; LEU2; LY3; LYT3; MAL; p32; P37
UniProt ID: (Human) P01732, (Human) P10966
Entrez Gene ID: (Human) 925, (Human) 926
T cell mediated immunity
immune response
cell surface receptor signaling pathway
transmembrane receptor protein tyrosine kinase signaling pathway
antigen processing and presentation
T cell activation
cytotoxic T cell differentiation
regulation of immune response
positive regulation of calcium-mediated signaling
defense response to virus
adaptive immune response
regulation of defense response to virus by virus
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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