AB198941

Alexa Fluor® 488 Anti-CD20 antibody [EP459Y]

Name: Anti-CD20 Alexa Fluor® 488 antibody [EP459Y] (ab198941) IgG | Abcam
Brand: Abcam Limited
SKU: AB198941
Rating: 4 (3 reviews)

RabMAb
Recombinant
What is this?

(3 Reviews)

(4 Publications)

Rabbit Recombinant Monoclonal CD20 antibody - conjugated to Alexa Fluor® 488. Suitable for Flow Cyt (Intra), ICC/IF, IHC-P and reacts with Human samples. Cited in 4 publications.

View Alternative Names

CD20, MS4A1, B-lymphocyte antigen CD20, B-lymphocyte surface antigen B1, Bp35, Leukocyte surface antigen Leu-16, Membrane-spanning 4-domains subfamily A member 1

1 Images

Flow Cytometry (Intracellular) - Alexa Fluor® 488 Anti-CD20 antibody [EP459Y] (AB198941)

Flow Cyt (Intra)

Lab

Flow Cytometry (Intracellular) - Alexa Fluor® 488 Anti-CD20 antibody [EP459Y] (AB198941)

Human peripheral blood lymphocytes stained with ab198941 (red line). Human whole blood was processed using a modified protocol based on Chow et al, 2005 (PMID : 16080188). In brief, human whole blood was fixed in 4% formaldehyde (methanol-free) for 10 min at 22°C. Red blood cells were then lyzed by the addition of Triton X-100 (final concentration - 0.1%) for 15 min at 37°C. For experimentation, cells were treated with 50% methanol (-20°C) for 15 min at 4°C. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab198941, 1/500 dilution) for 30 min at 4°C. Isotype control antibody (black line) was rabbit IgG (monoclonal) Alexa Fluor^® 488 (ab199091) used at the same concentration and conditions as the primary antibody. Unlabelled sample (blue line) was also used as a control.

Acquisition of >30,000 total events were collected using a 20mW Argon ion laser (488nm) and 525/30 bandpass filter.

Gating strategy - lymphocytes.

Carrier free

Anti-CD20 antibody [EP459Y] - BSA and Azide free
Carrier free

Anti-CD20 antibody [EP459Y] - Low endotoxin, Azide free
Unconjugated

Anti-CD20 antibody [EP459Y]
660 APC

APC Anti-CD20 antibody [EP459Y]
565 Alexa Fluor® 555

Alexa Fluor® 555 Anti-CD20 antibody [EP459Y]
603 Alexa Fluor® 568

Alexa Fluor® 568 Anti-CD20 antibody [EP459Y]
617 Alexa Fluor® 594

Alexa Fluor® 594 Anti-CD20 antibody [EP459Y]
665 Alexa Fluor® 647

Alexa Fluor® 647 Anti-CD20 antibody [EP459Y]
519 FITC

FITC Anti-CD20 antibody [EP459Y]
HRP

HRP Anti-CD20 antibody [EP459Y]
578 PE

PE Anti-CD20 antibody [EP459Y]

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EP459Y

Isotype

IgG

Conjugation

Alexa Fluor® 488

Excitation/Emission

Ex: 495nm, Em: 519nm

Carrier free

Reacts with

Human, Human

Applications

Flow Cyt (Intra), IHC-P, ICC/IF

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

style

left-column

style

left-column

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "FlowCytIntra" : {"fullname" : "Flow Cytometry (Intracellular)", "shortname":"Flow Cyt (Intra)"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "FlowCytIntra-species-checked": "testedAndGuaranteed", "FlowCytIntra-species-dilution-info": "1/500", "FlowCytIntra-species-notes": "", "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "" } } }

style

left-column

Product details

Patented technology
Our RabMAb^® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb^® patents.

Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

style

left-column

Properties and storage information

Form

Liquid

Purification technique

Affinity purification Protein A

Storage buffer

pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 30% Glycerol (glycerin, glycerine), 1% BSA

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

-20°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle|Store in the dark

style

left-column

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

CD20 also known as MS4A1 or L26 is a membrane-spanning 4-domains subfamily A member 1 protein. It is a non-glycosylated phosphoprotein with a molecular mass of approximately 33-37 kDa. Expressed extensively on the surface of B-cells CD20 plays an important role in B-cell activation and regulation. While CD20 is absent on early pro-B cells and plasma cells its presence increases as B-cells mature. Anti-CD20 antibodies such as 2H7 are commonly used in research and treatment to deplete B-cells due to the target's consistent expression in most stages of B-cell development.

Biological function summary

CD20 contributes significantly to calcium ion transport which is essential for the activation process of B-cells. Although CD20 does not belong to a larger protein complex its role centers around forming a calcium channel that allows a sustained influx of calcium into the B-cells. This influx is important for the signaling pathways that govern B-cell activation proliferation and differentiation impacting the immune response efficacy.

Pathways

CD20 is closely involved in the B-cell receptor (BCR) signaling pathway and the Fc gamma R-mediated phagocytosis pathway. These pathways play vital roles in adaptive immunity and immune response modulation. CD20's interaction with proteins like PI3K during BCR signaling enhances receptor-mediated cellular signals subsequently influencing downstream effectors involved in cell growth and survival of B-cells.

CD20 is strongly linked to certain blood cancers and autoimmune diseases including non-Hodgkin's lymphoma and rheumatoid arthritis. These conditions often exploit aberrant B-cell activity or count. CD20's expression on malignant B-cells in non-Hodgkin's lymphoma makes it an effective target for monoclonal antibody therapies such as rituximab an anti-CD20 antibody. Additionally CD20-targeted therapies can help deplete pathogenic B-cells in rheumatoid arthritis highlighting the protein's relevance in disease treatment.

style

left-column

style

left-column

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Visit the General protocols
Visit the Troubleshooting

style

left-column

Target data

B-lymphocyte-specific membrane protein that plays a role in the regulation of cellular calcium influx necessary for the development, differentiation, and activation of B-lymphocytes (PubMed : 12920111, PubMed : 3925015, PubMed : 7684739). Functions as a store-operated calcium (SOC) channel component promoting calcium influx after activation by the B-cell receptor/BCR (PubMed : 12920111, PubMed : 18474602, PubMed : 7684739).

See full target information MS4A1

style

left-column

Publications (4)

Recent publications for all applications. Explore the full list and refine your search

STAR protocols 6:103946 PubMed40652508

2025

Protocol for studying the immune microenvironment of human hepatocellular carcinoma by Cell DIVE multiplex immunofluorescence imaging.

Applications

Unspecified application

Species

Unspecified reactive species

Margaux Delaporte,Maelle Guillout,Pascale Bellaud,Anthony Sébillot,Bruno Turlin,Thierry Pécot,Michel Samson,Céline Raguénès-Nicol

Nature immunology 25:2152-2165 PubMed39438660

2024

A longitudinal single-cell atlas of anti-tumour necrosis factor treatment in inflammatory bowel disease.

Applications

Unspecified application

Species

Unspecified reactive species

Tom Thomas,Matthias Friedrich,Charlotte Rich-Griffin,Mathilde Pohin,Devika Agarwal,Julia Pakpoor,Carl Lee,Ruchi Tandon,Aniko Rendek,Dominik Aschenbrenner,Ashwin Jainarayanan,Alexandru Voda,Jacqueline H Y Siu,Raphael Sanches-Peres,Eloise Nee,Dharshan Sathananthan,Dylan Kotliar,Peter Todd,Maria Kiourlappou,Lisa Gartner,Nicholas Ilott,Fadi Issa,Joanna Hester,Jason Turner,Saba Nayar,Jonas Mackerodt,Fan Zhang,Anna Jonsson,Michael Brenner,Soumya Raychaudhuri,Ruth Kulicke,Danielle Ramsdell,Nicolas Stransky,Ray Pagliarini,Piotr Bielecki,Noah Spies,Brian Marsden,Stephen Taylor,Allon Wagner,Paul Klenerman,Alissa Walsh,Mark Coles,Luke Jostins-Dean,Fiona M Powrie,Andrew Filer,Simon Travis,Holm H Uhlig,Calliope A Dendrou,Christopher D Buckley

Molecular & cellular proteomics : MCP 23:100750 PubMed38513891

2024

An Automated and Fast Sample Preparation Workflow for Laser Microdissection Guided Ultrasensitive Proteomics.

Applications

Unspecified application

Species

Unspecified reactive species

Anuar Makhmut,Di Qin,David Hartlmayr,Anjali Seth,Fabian Coscia

Cell reports methods 1: PubMed34485971

2021

Toward reproducible, scalable, and robust data analysis across multiplex tissue imaging platforms.

Applications

Unspecified application

Species

Unspecified reactive species

Erik A Burlingame,Jennifer Eng,Guillaume Thibault,Koei Chin,Joe W Gray,Young Hwan Chang

View all publications

style

left-column

style

left-column

style

right-column

Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.

For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com

Alexa Fluor® 488 Anti-CD20 antibody [EP459Y]

Flow Cytometry (Intracellular) - Alexa Fluor® 488 Anti-CD20 antibody [EP459Y] (AB198941)

Related conjugates and formulations (11)

Key facts

Host species

Clonality

Clone number

Isotype

Conjugation

Excitation/Emission

Carrier free

Reacts with

Applications

Immunogen

Alternative Products

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Complementary Products

Assay Kits

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Reactivity data

Product details

Properties and storage information

Form

Purification technique

Storage buffer

Shipped at conditions

Appropriate short-term storage duration

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Product protocols

Target data

Publications (4)

Product promise