Thermo Fisher Scientific CD45 Monoclonal Antibody (2D1), Super Bright 780, eBioscience

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

5 µL (0.5 µg)/test

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Product Specifications

Published species

Not Applicable

Host/Isotype

Mouse / IgG1, kappa

Recommended Isotype Control

Mouse IgG1 kappa Isotype Control (P3.6.2.8.1), Super Bright™ 780, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

2D1

Conjugate

Super Bright™ 780 Super Bright™ 780 Super Bright™ 780

View additional formats

• Alexa Fluor 700
• APC
• APC-eFluor 780
• Brilliant Violet 711
• eFluor 450
• FITC
• NovaFluor Blue 510
• NovaFluor Blue 585
• NovaFluor Blue 610-30S
• NovaFluor Blue 610-70S
• NovaFluor Blue 660-120S
• NovaFluor Blue 660-40S
• NovaFluor Blue 690
• NovaFluor Blue 725
• NovaFluor Blue 760
• NovaFluor Blue 800
• NovaFluor Red 660
• NovaFluor Red 685
• NovaFluor Red 700
• NovaFluor Red 710
• NovaFluor Red 725
• NovaFluor Red 755
• NovaFluor UV 765
• NovaFluor Violet 690
• NovaFluor Violet 800
• NovaFluor Yellow 590
• NovaFluor Yellow 610
• NovaFluor Yellow 660
• NovaFluor Yellow 700
• NovaFluor Yellow 730
• NovaFluor Yellow 755
• NovaFluor Yellow 810
• PE
• PE-Cyanine7
• PE-eFluor 610
• PerCP-Cyanine5.5
• Super Bright 436
• Super Bright 600
• Super Bright 645
• Request custom conjugation

Excitation/Emission Max

413/780 nm View spectra

Form

Liquid

Concentration

5 µL/Test

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Wet ice

RRID

AB_2762591

Product Specific Information

Description: The 2D1 monoclonal antibody reacts with all isoforms of human CD45, also known as Leukocyte Common Antigen (LCA). CD45 is expressed by all hematopoietic cells excluding circulating erythrocytes and platelets. The cytoplasmic portion of CD45 has tyrosine phosphatase enzymatic activity and plays an important role in activation of lymphocytes.

Applications Reported: This 2D1 antibody has been reported for use in flow cytometric analysis.

Applications Tested: This 2D1 antibody has been pre-diluted and tested by flow cytometric analysis of normal human peripheral blood cells. This may be used at 5 µL (0.5 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.

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.

Target Information

CD45 (LCA, leukocyte common antigen) is a receptor-type protein tyrosine phosphatase (PTP) ubiquitously expressed in all nucleated hematopoietic cells, comprising approximately 10% of all surface proteins in lymphocytes. CD45 is absent on non-hematopoietic cell lines, normal and malignant, non-hematopoietic tissues. CD45 glycoprotein is crucial in lymphocyte development and antigen signaling, serving as an important regulator of Src-family kinases. CD45 protein exists as multiple isoforms as a result of alternative splicing, differ in their extracellular domains but share identical transmembrane and cytoplasmic domains. CD45RA is an isoform of the CD45 complex and has restricted expression between different subtypes of lymphoid cells. CD45 isoforms differ in their ability to translocate into the glycosphingolipid-enriched membrane domains and their expression depends on cell type and physiological state of the cell. CD45 has been shown to be an essential regulator of T- and B-cell antigen receptor signaling and suppresses JAK kinases to regulate cytokine receptor signaling. CD45 is also important in promoting cell survival by modulating integrin-mediated signal transduction pathway, DNA fragmentation during apoptosis and inhibition or upregulation of various immunological functions.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.