B220 Antibody

B220 (B cell specific isoform of CD45), Rat Anti-Mouse
Cat. No.
BT3394
Source
Synonyms
LCA, PTPRC, LY5, B220, CD45R, T200, GP180, PROTEIN-TYROSINE PHOSPHATASE, RECEPTOR-TYPE C.
Appearance
Purity
Usage
Prospec's products are furnished for LABORATORY ESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

Product Specs

Introduction
B220 (CD45R) is a protein tyrosine phosphatase (PTP) involved in cell signaling. It's found in hematopoietic cells and is crucial for T-cell and B-cell antigen receptor signaling. This receptor-type PTP regulates signaling by interacting with antigen receptor complexes, activating Src family kinases, and suppressing JAK kinases. The antibody targets B220, which has a single transmembrane segment, two intracellular catalytic domains, and an extracellular domain. Four alternatively spliced isoforms exist. B220 is required for t-cell activation through the antigen receptor. The first ptpase domain has enzymatic activity, while the second one seems to affect the substrate specificity of the first one.
Formulation
Supplied as a 1 mg/ml solution in PBS buffer. Reconstitute lyophilized powder with suitable diluent before use.
Storage Procedures
Store lyophilized antibody at 4°C. After reconstitution, use within one month or aliquot and store at -20°C for long-term storage.
Solubility
Reconstitute the lyophilized antibody with distilled water. Ensure thorough mixing and allow 30-60 seconds for complete reconstitution.
Applications
Recommended for staining applications. Use 10 µl of antibody per 1,000,000 cells.
Available Conjugates
This antibody is available only in its purified form.
Synonyms
LCA, PTPRC, LY5, B220, CD45R, T200, GP180, PROTEIN-TYROSINE PHOSPHATASE, RECEPTOR-TYPE C.
Purification Method
Ion exchange column.
Type
Rat Anti Mouse Monoclonal.
Clone
mB220.
Immunogen
Purified mouse LN B cells.
Ig Subclass
Rat IgM.

Product Science Overview

CD45 and Its Isoforms

CD45 is a type I transmembrane protein tyrosine phosphatase that plays a crucial role in regulating antigen receptor signaling in both B and T lymphocytes. The CD45 molecule exists in multiple isoforms, generated through alternative splicing of exons 4, 5, and 6. These isoforms are differentially expressed on various subsets of lymphocytes, allowing for the identification and characterization of these cells .

B220/CD45R in Mice

In mice, B220 is a pan-B cell marker, meaning it is expressed on all B cells throughout their development. The expression of B220 is developmentally regulated, with varying levels observed at different stages of B cell maturation. This makes B220 an invaluable marker for studying B cell biology and immunology .

Rat Anti-Mouse B220 Antibody

The Rat Anti-Mouse B220 antibody is a monoclonal antibody that specifically binds to the B220 isoform of CD45. This antibody is widely used in research to identify and isolate B cells from mouse tissues. It is commonly used in techniques such as flow cytometry, immunohistochemistry, and immunoprecipitation .

Applications in Research
  1. Flow Cytometry: The Rat Anti-Mouse B220 antibody is frequently used in flow cytometry to analyze the expression of B220 on B cells. This allows researchers to quantify and sort B cells based on their developmental stage and activation status .
  2. Immunohistochemistry: This antibody is also used in immunohistochemistry to visualize B cells in tissue sections. By staining tissue samples with the Rat Anti-Mouse B220 antibody, researchers can study the distribution and localization of B cells within different tissues .
  3. Immunoprecipitation: The Rat Anti-Mouse B220 antibody can be used to isolate B220-expressing cells from a mixture of cells. This technique is useful for studying the biochemical properties and interactions of B220 in B cells .
Importance in Immunology

The study of B220 and its role in B cell development and function is essential for understanding the immune system. B cells are responsible for producing antibodies, which are crucial for the adaptive immune response. By using the Rat Anti-Mouse B220 antibody, researchers can gain insights into the mechanisms of B cell activation, differentiation, and their role in immune responses .

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