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Invitrogen
CD8a Monoclonal Antibody (OX8), Super Bright™ 780, eBioscience™
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CD8a Antibody (78-0084-82) in Flow
Wistar rat splenocytes were stained with CD4 Monoclonal Antibody, FITC (Product # 11-0040-82) and 1.0 µg of Mouse IgG1 kappa Isotype Control, Super Bright 780 (Product # 78-4714-82) (left) or 1.0 µg of CD8a Monoclonal Antibody, Super Bright 780 (right). Cells in the lymphocyte gate were used for analysis.
产品信息
78-0084-82
产品规格
种属反应
Rat
宿主/亚型
Mouse
/ IgG1, kappa
分类
Monoclonal
类型
Antibody
克隆号
OX8
偶联物
激发/发射光谱
413/780 nm
查看光谱
形式
Liquid
浓度
0.2 mg/mL
纯化类型
Affinity chromatography
保存液
PBS, pH 7.2, with BSA
内含物
0.09% sodium azide
保存条件
4°C, store in dark, DO NOT FREEZE!
运输条件
Ambient (domestic); Wet ice (international)
RRID
产品详细信息
Description: The OX8 monoclonal antibody reacts with rat CD8 alpha. CD8 alpha is a member of the immunoglobulin superfamily which heterodimerizes with CD8 beta to form the CD8 antigen expressed on CD4+CD8+, double-positive thymocytes, the majority of MHC class I-restricted peripheral T cells, and on some macrophages. CD8 binds to MHC class I expressed on the surface of antigen-presenting cells during antigen presentation, and participates in T-cell receptor signal transduction through association with the kinase Lck.
Applications Reported: This OX8 antibody has been reported for use in flow cytometric analysis.
Applications Tested: This OX8 antibody has been tested by flow cytometric analysis of rat splenocytes. This may be used at less than or equal to 1.0 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Super Bright 780 is a tandem dye that can be excited with the violet laser line (405 nm) and emits at 780 nm. We recommend using a 780/60 bandpass filter. Please make sure that your instrument is capable of detecting this fluorochrome.
In some experiments, we have observed that compensation values for Super Bright 780-conjugated antibodies are higher in the violet 450/50 channel when using UltraComp eBeads microspheres (Product # 01-2222-42) as compared to single-color stained cells. In such circumstances, we would recommend setting compensation with cells. We have also observed this in some experiments using AbC Total Antibody Compensation beads (Product # A10497).
When using two or more Super Bright dye-conjugated antibodies in a staining panel, it is recommended to use Super Bright Complete Staining Buffer (Product # SB-4401) to minimize any non-specific polymer interactions. Please refer to the datasheet for Super Bright Staining Buffer for more information.
Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.
Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222-49) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333-57) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.
Excitation: 405 nm; Emission: 780 nm; Laser: Violet Laser
Super Bright Polymer Dyes are sold under license from Becton, Dickinson and Company.
靶标信息
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.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
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.
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生物信息学
蛋白别名: CD8 antigen 32 kDa chain; CD8 antigen 37 kDa chain; CD8 antigen alpha-chain; CD8 antigen beta-chain; CD8 antigen, alpha chain; CD8 antigen, alpha-chain; CD8 antigen, beta chain; CD8 antigen, beta-chain; CD8a; CD8alpha; CD8b; CD8beta; fCD8; Leu-2; leu-2a; OX-8 membrane antigen; T-cell surface glycoprotein CD8 alpha chain; T-cell surface glycoprotein CD8 beta chain
基因别名: Cd8a; Cd8b; Cd8b1
UniProt ID: (Rat) P07725, (Rat) P05541
Entrez Gene ID: (Rat) 24930, (Rat) 24931
