CD81 Antibody (YA7454)

Cat. No.: HY-P87769: Data Sheet User Guide for Antibodies
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CD81 Antibody (YA7454) is a Rabbit-derived and non-conjugated IgG, Kappa monoclonal antibody, targeting to CD81.

For research use only. We do not sell to patients.

Size		Stock
50 μL		Get quote
100 μL		Get quote

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WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
Background
Documentation
References

Description

CD81 Antibody (YA7454) is a Rabbit-derived and non-conjugated IgG, Kappa monoclonal antibody, targeting to CD81.

Host

Rabbit

Clonality

Monoclonal,Recombinant

Molecular Weight

Predicted band size: 26 kDa;

Observed band size: 22 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Mouse, Rat

SwissProt ID

P60033

Immunogen

The exact sequence is proprietary to MCE.

Application &
Dilution Ratio

Application	Dilution Ratio
IHC-P IHC-P: Immunohistochemistry-Paraffin	1:200-1:1000
WB WB: Western Blot	1:2000-1:10000
ICC/IF ICC/IF: Immunocytochemistry/Immunofluorescence	1:200-1:1000
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:5000-1:20000

Sensitivity	Endogenous	Purity	Protein A affinity purified
Conjugation	Non-conjugated	Modification	Unmodified
Isotype	IgG,Kappa

Appearance

Liquid

Formulation

Supplied in PBS (pH7.4) containing 50% glycerol, 0.05% Proclin 300, 0.05%BSA

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Background

Function：Structural component of specialized membrane microdomains known as tetraspanin-enriched microdomains (TERMs), which act as platforms for receptor clustering and signaling. Essential for trafficking and compartmentalization of CD19 receptor on the surface of activated B cells (PubMed:16449649, PubMed:20237408, PubMed:27881302). Upon initial encounter with microbial pathogens, enables the assembly of CD19-CR2/CD21 and B cell receptor (BCR) complexes at signaling TERMs, lowering the threshold dose of antigen required to trigger B cell clonal expansion and antibody production (PubMed:15161911, PubMed:20237408). In T cells, facilitates the localization of CD247/CD3 zeta at antigen-induced synapses with B cells, providing for costimulation and polarization toward T helper type 2 phenotype (PubMed:22307619, PubMed:23858057, PubMed:8766544). Present in MHC class II compartments, may also play a role in antigen presentation (PubMed:8409388, PubMed:8766544). Can act both as positive and negative regulator of homotypic or heterotypic cell-cell fusion processes. Positively regulates sperm-egg fusion and may be involved in acrosome reaction (By similarity). In myoblasts, associates with CD9 and PTGFRN and inhibits myotube fusion during muscle regeneration (By similarity). In macrophages, associates with CD9 and beta-1 and beta-2 integrins, and prevents macrophage fusion into multinucleated giant cells specialized in ingesting complement-opsonized large particles (PubMed:12796480). Also prevents the fusion of mononuclear cell progenitors into osteoclasts in charge of bone resorption (By similarity). May regulate the compartmentalization of enzymatic activities. In T cells, defines the subcellular localization of dNTPase SAMHD1 and permits its degradation by the proteasome, thereby controlling intracellular dNTP levels (PubMed:28871089). Also involved in cell adhesion and motility. Positively regulates integrin-mediated adhesion of macrophages, particularly relevant for the inflammatory response in the lung (By similarity)|(Microbial infection) Acts as a receptor for hepatitis C virus (HCV) in hepatocytes. Association with CLDN1 and the CLDN1-CD81 receptor complex is essential for HCV entry into host cell|(Microbial infection) Involved in SAMHD1-dependent restriction of HIV-1 replication. May support early replication of both R5- and X4-tropic HIV-1 viruses in T cells, likely via proteasome-dependent degradation of SAMHD1|(Microbial infection) Specifically required for Plasmodium falciparum infectivity of hepatocytes, controlling sporozoite entry into hepatocytes via the parasitophorous vacuole and subsequent parasite differentiation to exoerythrocytic forms

Subcellular Localization：Cell membrane,Basolateral cell membrane

Expression：
Tissue_Specificity: Expressed on B cells (at protein level) (PubMed:20237408). Expressed in hepatocytes (at protein level) (PubMed:12483205). Expressed in monocytes/macrophages (at protein level) (PubMed:12796480). Expressed on both naive and memory CD4-positive T cells (at protein level) (PubMed:22307619)

Isoforms & Post-Translational Modification：P60033: 236 amino acids, molecular weight 25809 Da.

Subunit：Homodimer (PubMed:20375010)

Documentation

User Guide for Antibodies (1077 KB)

References

[1]. /biology-dictionary/huvec-cell.html [Content Brief]